diff --git a/.dialyzer-ignore b/.dialyzer-ignore
index 805002050d51..c977d71eb665 100644
--- a/.dialyzer-ignore
+++ b/.dialyzer-ignore
@@ -44,5 +44,5 @@ lib/explorer/smart_contract/reader.ex:478
 
 lib/indexer/buffered_task.ex:402
 lib/indexer/buffered_task.ex:451
-lib/indexer/memory/monitor.ex:161
+lib/indexer/memory/monitor.ex:160
 lib/indexer/fetcher/internal_transaction.ex:235
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8d4c5bc319f5..4d2052d6c19b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -94,6 +94,7 @@
 - [#4582](https://github.com/blockscout/blockscout/pull/4582) - Fix NaN input on write contract page
 
 ### Chore
+- [#5369](https://github.com/blockscout/blockscout/pull/5369) - Manage indexer memory limit
 - [#4707](https://github.com/blockscout/blockscout/pull/4707) - Top navigation: Move Accounts tab to Tokens
 - [#4704](https://github.com/blockscout/blockscout/pull/4704) - Update to Erlang/OTP 24
 - [#4682](https://github.com/blockscout/blockscout/pull/4682) - Update all possible outdated mix dependencies
@@ -1456,4 +1457,4 @@ Reverting of synchronous block counter, implemented in #1848
 ### Chore
  - [https://github.com/blockscout/blockscout/pull/1532](https://github.com/blockscout/blockscout/pull/1532) - Upgrade elixir to 1.8.1
  - [https://github.com/blockscout/blockscout/pull/1553](https://github.com/blockscout/blockscout/pull/1553) - Dockerfile: remove 1.7.1 version pin FROM bitwalker/alpine-elixir-phoenix
- - [https://github.com/blockscout/blockscout/pull/1465](https://github.com/blockscout/blockscout/pull/1465) - Resolve lodash security alert
+ - [https://github.com/blockscout/blockscout/pull/1465](https://github.com/blockscout/blockscout/pull/1465) - Resolve lodash security alert
\ No newline at end of file
diff --git a/apps/block_scout_web/config/config.exs b/apps/block_scout_web/config/config.exs
index 09681e90bfd5..180b43a53683 100644
--- a/apps/block_scout_web/config/config.exs
+++ b/apps/block_scout_web/config/config.exs
@@ -1,9 +1,9 @@
 # This file is responsible for configuring your application
-# and its dependencies with the aid of the Mix.Config module.
+# and its dependencies with the aid of the Config module.
 #
 # This configuration file is loaded before any dependency and
 # is restricted to this project.
-use Mix.Config
+import Config
 
 alias BlockScoutWeb.LoggerBackend
 
@@ -166,8 +166,8 @@ config :block_scout_web, BlockScoutWeb.ApiRouter,
 
 config :block_scout_web, BlockScoutWeb.WebRouter, enabled: System.get_env("DISABLE_WEBAPP") != "true"
 
+config :prometheus, BlockScoutWeb.Prometheus.Exporter, path: "/metrics/web"
+
 # Import environment specific config. This must remain at the bottom
 # of this file so it overrides the configuration defined above.
-import_config "#{Mix.env()}.exs"
-
-config :prometheus, BlockScoutWeb.Prometheus.Exporter, path: "/metrics/web"
+import_config "#{config_env()}.exs"
diff --git a/apps/block_scout_web/config/dev.exs b/apps/block_scout_web/config/dev.exs
index fa09345154bd..4ef0d32f10bc 100644
--- a/apps/block_scout_web/config/dev.exs
+++ b/apps/block_scout_web/config/dev.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 # For development, we disable any cache and enable
 # debugging and code reloading.
diff --git a/apps/block_scout_web/config/prod.exs b/apps/block_scout_web/config/prod.exs
index 5667f1d9b372..a1666885082d 100644
--- a/apps/block_scout_web/config/prod.exs
+++ b/apps/block_scout_web/config/prod.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 # For production, we often load configuration from external
 # sources, such as your system environment. For this reason,
diff --git a/apps/block_scout_web/config/test.exs b/apps/block_scout_web/config/test.exs
index 8ba16ada6ee7..45c77c8d4758 100644
--- a/apps/block_scout_web/config/test.exs
+++ b/apps/block_scout_web/config/test.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :block_scout_web, :sql_sandbox, true
 
diff --git a/apps/ethereum_jsonrpc/config/config.exs b/apps/ethereum_jsonrpc/config/config.exs
index e035052292ae..16fd5d26d175 100644
--- a/apps/ethereum_jsonrpc/config/config.exs
+++ b/apps/ethereum_jsonrpc/config/config.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :ethereum_jsonrpc, EthereumJSONRPC.RequestCoordinator,
   rolling_window_opts: [
@@ -46,4 +46,4 @@ config :ethereum_jsonrpc, :internal_transaction_timeout, "900s"
 
 # Import environment specific config. This must remain at the bottom
 # of this file so it overrides the configuration defined above.
-import_config "#{Mix.env()}.exs"
+import_config "#{config_env()}.exs"
diff --git a/apps/ethereum_jsonrpc/config/dev.exs b/apps/ethereum_jsonrpc/config/dev.exs
index 1f81a56cb5e6..da39fcf0802c 100644
--- a/apps/ethereum_jsonrpc/config/dev.exs
+++ b/apps/ethereum_jsonrpc/config/dev.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :ethereum_jsonrpc, EthereumJSONRPC.Tracer, env: "dev", disabled?: true
 
diff --git a/apps/ethereum_jsonrpc/config/prod.exs b/apps/ethereum_jsonrpc/config/prod.exs
index 4b4d80babb41..f11e4e7a728c 100644
--- a/apps/ethereum_jsonrpc/config/prod.exs
+++ b/apps/ethereum_jsonrpc/config/prod.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :ethereum_jsonrpc, EthereumJSONRPC.Tracer, env: "production", disabled?: true
 
diff --git a/apps/ethereum_jsonrpc/config/test.exs b/apps/ethereum_jsonrpc/config/test.exs
index 88e4eba302a9..0ed3de28b282 100644
--- a/apps/ethereum_jsonrpc/config/test.exs
+++ b/apps/ethereum_jsonrpc/config/test.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :ethereum_jsonrpc, EthereumJSONRPC.RequestCoordinator,
   rolling_window_opts: [
diff --git a/apps/explorer/config/config.exs b/apps/explorer/config/config.exs
index 960fd1bbcd9d..bcd0d8fbcf45 100644
--- a/apps/explorer/config/config.exs
+++ b/apps/explorer/config/config.exs
@@ -1,9 +1,9 @@
 # This file is responsible for configuring your application
-# and its dependencies with the aid of the Mix.Config module.
+# and its dependencies with the aid of the Config module.
 #
 # This configuration file is loaded before any dependency and
 # is restricted to this project.
-use Mix.Config
+import Config
 
 # General application configuration
 config :explorer,
@@ -293,4 +293,4 @@ config :explorer, Explorer.ThirdPartyIntegrations.Sourcify,
 
 # Import environment specific config. This must remain at the bottom
 # of this file so it overrides the configuration defined above.
-import_config "#{Mix.env()}.exs"
+import_config "#{config_env()}.exs"
diff --git a/apps/explorer/config/dev.exs b/apps/explorer/config/dev.exs
index 437ac253fdc9..de1922a3bc3c 100644
--- a/apps/explorer/config/dev.exs
+++ b/apps/explorer/config/dev.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 database = if System.get_env("DATABASE_URL"), do: nil, else: "explorer_dev"
 hostname = if System.get_env("DATABASE_URL"), do: nil, else: "localhost"
diff --git a/apps/explorer/config/dev/arbitrum.exs b/apps/explorer/config/dev/arbitrum.exs
index d96839da1d23..05d557c5883f 100644
--- a/apps/explorer/config/dev/arbitrum.exs
+++ b/apps/explorer/config/dev/arbitrum.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :explorer,
   json_rpc_named_arguments: [
diff --git a/apps/explorer/config/dev/besu.exs b/apps/explorer/config/dev/besu.exs
index e014ac960cc6..a277e2c68e06 100644
--- a/apps/explorer/config/dev/besu.exs
+++ b/apps/explorer/config/dev/besu.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :explorer,
   json_rpc_named_arguments: [
diff --git a/apps/explorer/config/dev/ganache.exs b/apps/explorer/config/dev/ganache.exs
index e6c2214601bd..dcea3bb0490e 100644
--- a/apps/explorer/config/dev/ganache.exs
+++ b/apps/explorer/config/dev/ganache.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :explorer,
   json_rpc_named_arguments: [
diff --git a/apps/explorer/config/dev/geth.exs b/apps/explorer/config/dev/geth.exs
index 00f52e54e681..6397c160f88b 100644
--- a/apps/explorer/config/dev/geth.exs
+++ b/apps/explorer/config/dev/geth.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :explorer,
   json_rpc_named_arguments: [
diff --git a/apps/explorer/config/dev/parity.exs b/apps/explorer/config/dev/parity.exs
index aebe0dfac123..4008d5eb6d03 100644
--- a/apps/explorer/config/dev/parity.exs
+++ b/apps/explorer/config/dev/parity.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :explorer,
   json_rpc_named_arguments: [
diff --git a/apps/explorer/config/dev/rsk.exs b/apps/explorer/config/dev/rsk.exs
index 58af2ee8c0df..2e4a9da4609b 100644
--- a/apps/explorer/config/dev/rsk.exs
+++ b/apps/explorer/config/dev/rsk.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :explorer,
   json_rpc_named_arguments: [
diff --git a/apps/explorer/config/prod.exs b/apps/explorer/config/prod.exs
index 7aecaa6d0551..b3d0a1766a97 100644
--- a/apps/explorer/config/prod.exs
+++ b/apps/explorer/config/prod.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 # Configures the database
 config :explorer, Explorer.Repo,
diff --git a/apps/explorer/config/prod/arbitrum.exs b/apps/explorer/config/prod/arbitrum.exs
index 8ef7b06dbba8..3663189d3da1 100644
--- a/apps/explorer/config/prod/arbitrum.exs
+++ b/apps/explorer/config/prod/arbitrum.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :explorer,
   json_rpc_named_arguments: [
diff --git a/apps/explorer/config/prod/besu.exs b/apps/explorer/config/prod/besu.exs
index 4b69e1363ea8..8eaada397108 100644
--- a/apps/explorer/config/prod/besu.exs
+++ b/apps/explorer/config/prod/besu.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :explorer,
   json_rpc_named_arguments: [
diff --git a/apps/explorer/config/prod/ganache.exs b/apps/explorer/config/prod/ganache.exs
index c0a4b98a02be..694d1ea4d9e5 100644
--- a/apps/explorer/config/prod/ganache.exs
+++ b/apps/explorer/config/prod/ganache.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :explorer,
   json_rpc_named_arguments: [
diff --git a/apps/explorer/config/prod/geth.exs b/apps/explorer/config/prod/geth.exs
index 026d745e9b4a..026c06204749 100644
--- a/apps/explorer/config/prod/geth.exs
+++ b/apps/explorer/config/prod/geth.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :explorer,
   json_rpc_named_arguments: [
diff --git a/apps/explorer/config/prod/parity.exs b/apps/explorer/config/prod/parity.exs
index 68c1d14fdff9..796a06643388 100644
--- a/apps/explorer/config/prod/parity.exs
+++ b/apps/explorer/config/prod/parity.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :explorer,
   json_rpc_named_arguments: [
diff --git a/apps/explorer/config/prod/rsk.exs b/apps/explorer/config/prod/rsk.exs
index fc62a1c43164..316be82dbfd5 100644
--- a/apps/explorer/config/prod/rsk.exs
+++ b/apps/explorer/config/prod/rsk.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :explorer,
   json_rpc_named_arguments: [
diff --git a/apps/explorer/config/test.exs b/apps/explorer/config/test.exs
index 3c9039a0ee8f..742991688d7e 100644
--- a/apps/explorer/config/test.exs
+++ b/apps/explorer/config/test.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 # Lower hashing rounds for faster tests
 config :bcrypt_elixir, log_rounds: 4
diff --git a/apps/explorer/config/test/arbitrum.exs b/apps/explorer/config/test/arbitrum.exs
index 5a910d54171d..2bb92bef1248 100644
--- a/apps/explorer/config/test/arbitrum.exs
+++ b/apps/explorer/config/test/arbitrum.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :explorer,
   json_rpc_named_arguments: [
diff --git a/apps/explorer/config/test/besu.exs b/apps/explorer/config/test/besu.exs
index f5c234c7e159..25b35515b4f3 100644
--- a/apps/explorer/config/test/besu.exs
+++ b/apps/explorer/config/test/besu.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :explorer,
   transport: EthereumJSONRPC.HTTP,
diff --git a/apps/explorer/config/test/ganache.exs b/apps/explorer/config/test/ganache.exs
index abb61a063248..a73d451d403c 100644
--- a/apps/explorer/config/test/ganache.exs
+++ b/apps/explorer/config/test/ganache.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :explorer,
   json_rpc_named_arguments: [
diff --git a/apps/explorer/config/test/geth.exs b/apps/explorer/config/test/geth.exs
index 73869e31a33b..ba6792324806 100644
--- a/apps/explorer/config/test/geth.exs
+++ b/apps/explorer/config/test/geth.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :explorer,
   json_rpc_named_arguments: [
diff --git a/apps/explorer/config/test/parity.exs b/apps/explorer/config/test/parity.exs
index 0859de439a60..c0e9464f7e04 100644
--- a/apps/explorer/config/test/parity.exs
+++ b/apps/explorer/config/test/parity.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :explorer,
   transport: EthereumJSONRPC.HTTP,
diff --git a/apps/explorer/config/test/rsk.exs b/apps/explorer/config/test/rsk.exs
index 861525bb0d67..1799a52dc41c 100644
--- a/apps/explorer/config/test/rsk.exs
+++ b/apps/explorer/config/test/rsk.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :explorer,
   transport: EthereumJSONRPC.HTTP,
diff --git a/apps/indexer/config/config.exs b/apps/indexer/config/config.exs
index 77c0148f2480..5cdb9a96325e 100644
--- a/apps/indexer/config/config.exs
+++ b/apps/indexer/config/config.exs
@@ -1,8 +1,6 @@
 # This file is responsible for configuring your application
-# and its dependencies with the aid of the Mix.Config module.
-use Mix.Config
-
-import Bitwise
+# and its dependencies with the aid of the Config module.
+import Config
 
 alias Indexer.LoggerBackend
 
@@ -43,8 +41,6 @@ config :indexer,
   ecto_repos: [Explorer.Repo],
   metadata_updater_seconds_interval:
     String.to_integer(System.get_env("TOKEN_METADATA_UPDATE_INTERVAL") || "#{10 * 60 * 60}"),
-  # bytes
-  memory_limit: 1 <<< 30,
   health_check_port: port || 4001,
   first_block: System.get_env("FIRST_BLOCK") || "",
   last_block: System.get_env("LAST_BLOCK") || "",
@@ -98,10 +94,6 @@ config :indexer, Indexer.Block.Fetcher, enable_gold_token: true
 config :indexer, Indexer.Prometheus.MetricsCron, metrics_fetcher_blocks_count: 1000
 config :indexer, Indexer.Prometheus.MetricsCron, metrics_cron_interval: System.get_env("METRICS_CRON_INTERVAL") || "2"
 
-# Import environment specific config. This must remain at the bottom
-# of this file so it overrides the configuration defined above.
-import_config "#{Mix.env()}.exs"
-
 config :prometheus, Indexer.Prometheus.Exporter,
   path: "/metrics/indexer",
   format: :text,
@@ -121,3 +113,7 @@ config :indexer, Indexer.Fetcher.EmptyBlocksSanitizer.Supervisor,
   disabled?: System.get_env("INDEXER_DISABLE_EMPTY_BLOCK_SANITIZER", "false") == "true"
 
 config :indexer, Indexer.Fetcher.EmptyBlocksSanitizer, batch_size: indexer_empty_blocks_sanitizer_batch_size
+
+# Import environment specific config. This must remain at the bottom
+# of this file so it overrides the configuration defined above.
+import_config "#{config_env()}.exs"
diff --git a/apps/indexer/config/dev.exs b/apps/indexer/config/dev.exs
index 02061549a832..7124cbf5217c 100644
--- a/apps/indexer/config/dev.exs
+++ b/apps/indexer/config/dev.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :indexer, Indexer.Tracer, env: "dev", disabled?: true
 
diff --git a/apps/indexer/config/dev/arbitrum.exs b/apps/indexer/config/dev/arbitrum.exs
index e035ab01f524..664d64cf7b79 100644
--- a/apps/indexer/config/dev/arbitrum.exs
+++ b/apps/indexer/config/dev/arbitrum.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :indexer,
   block_interval: :timer.seconds(5),
diff --git a/apps/indexer/config/dev/besu.exs b/apps/indexer/config/dev/besu.exs
index 995adbfb716b..af23f64718c1 100644
--- a/apps/indexer/config/dev/besu.exs
+++ b/apps/indexer/config/dev/besu.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :indexer,
   block_interval: :timer.seconds(5),
diff --git a/apps/indexer/config/dev/ganache.exs b/apps/indexer/config/dev/ganache.exs
index 229d9d36d903..ee377b5022bc 100644
--- a/apps/indexer/config/dev/ganache.exs
+++ b/apps/indexer/config/dev/ganache.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :indexer,
   block_interval: :timer.seconds(5),
diff --git a/apps/indexer/config/dev/geth.exs b/apps/indexer/config/dev/geth.exs
index a3d39c6ea28b..4d814c24853a 100644
--- a/apps/indexer/config/dev/geth.exs
+++ b/apps/indexer/config/dev/geth.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :indexer,
   block_interval: :timer.seconds(5),
diff --git a/apps/indexer/config/dev/parity.exs b/apps/indexer/config/dev/parity.exs
index bff27731f0e3..b3e14583d753 100644
--- a/apps/indexer/config/dev/parity.exs
+++ b/apps/indexer/config/dev/parity.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :indexer,
   block_interval: :timer.seconds(5),
diff --git a/apps/indexer/config/dev/rsk.exs b/apps/indexer/config/dev/rsk.exs
index 28c19e6c7f89..8132cb7cd6a2 100644
--- a/apps/indexer/config/dev/rsk.exs
+++ b/apps/indexer/config/dev/rsk.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :indexer,
   block_interval: :timer.seconds(5),
diff --git a/apps/indexer/config/prod.exs b/apps/indexer/config/prod.exs
index 76f4bcac52af..0fa704c5a64d 100644
--- a/apps/indexer/config/prod.exs
+++ b/apps/indexer/config/prod.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :indexer, Indexer.Tracer, env: "production", disabled?: true
 
diff --git a/apps/indexer/config/prod/arbitrum.exs b/apps/indexer/config/prod/arbitrum.exs
index b9f23bb45dd3..2d35dd91ad42 100644
--- a/apps/indexer/config/prod/arbitrum.exs
+++ b/apps/indexer/config/prod/arbitrum.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :indexer,
   block_interval: :timer.seconds(5),
diff --git a/apps/indexer/config/prod/besu.exs b/apps/indexer/config/prod/besu.exs
index c6393935fe12..70360adc1a81 100644
--- a/apps/indexer/config/prod/besu.exs
+++ b/apps/indexer/config/prod/besu.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :indexer,
   block_interval: :timer.seconds(5),
diff --git a/apps/indexer/config/prod/ganache.exs b/apps/indexer/config/prod/ganache.exs
index 229d9d36d903..ee377b5022bc 100644
--- a/apps/indexer/config/prod/ganache.exs
+++ b/apps/indexer/config/prod/ganache.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :indexer,
   block_interval: :timer.seconds(5),
diff --git a/apps/indexer/config/prod/geth.exs b/apps/indexer/config/prod/geth.exs
index 85d8563ce989..4de0919c2be4 100644
--- a/apps/indexer/config/prod/geth.exs
+++ b/apps/indexer/config/prod/geth.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :indexer,
   block_interval: :timer.seconds(5),
diff --git a/apps/indexer/config/prod/parity.exs b/apps/indexer/config/prod/parity.exs
index 8dec2934448c..e9dde3481417 100644
--- a/apps/indexer/config/prod/parity.exs
+++ b/apps/indexer/config/prod/parity.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :indexer,
   block_interval: :timer.seconds(5),
diff --git a/apps/indexer/config/prod/rsk.exs b/apps/indexer/config/prod/rsk.exs
index 5d52ad470d0d..daa5f224548d 100644
--- a/apps/indexer/config/prod/rsk.exs
+++ b/apps/indexer/config/prod/rsk.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :indexer,
   block_interval: :timer.seconds(5),
diff --git a/apps/indexer/config/test.exs b/apps/indexer/config/test.exs
index 71dc7da36a6f..76f96d220084 100644
--- a/apps/indexer/config/test.exs
+++ b/apps/indexer/config/test.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :indexer, Indexer.Tracer, disabled?: false
 
diff --git a/apps/indexer/config/test/arbitrum.exs b/apps/indexer/config/test/arbitrum.exs
index e2e51342d122..717b3f730be9 100644
--- a/apps/indexer/config/test/arbitrum.exs
+++ b/apps/indexer/config/test/arbitrum.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :indexer,
   json_rpc_named_arguments: [
diff --git a/apps/indexer/config/test/besu.exs b/apps/indexer/config/test/besu.exs
index ceaac3a9b486..2d388f17026e 100644
--- a/apps/indexer/config/test/besu.exs
+++ b/apps/indexer/config/test/besu.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :indexer,
   json_rpc_named_arguments: [
diff --git a/apps/indexer/config/test/ganache.exs b/apps/indexer/config/test/ganache.exs
index b42177915202..9fa1d7e19949 100644
--- a/apps/indexer/config/test/ganache.exs
+++ b/apps/indexer/config/test/ganache.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :indexer,
   json_rpc_named_arguments: [
diff --git a/apps/indexer/config/test/geth.exs b/apps/indexer/config/test/geth.exs
index 7c4b58b31aa8..c70674d063c2 100644
--- a/apps/indexer/config/test/geth.exs
+++ b/apps/indexer/config/test/geth.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :indexer,
   json_rpc_named_arguments: [
diff --git a/apps/indexer/config/test/parity.exs b/apps/indexer/config/test/parity.exs
index af3c396e9a90..217587522a62 100644
--- a/apps/indexer/config/test/parity.exs
+++ b/apps/indexer/config/test/parity.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :indexer,
   json_rpc_named_arguments: [
diff --git a/apps/indexer/config/test/rsk.exs b/apps/indexer/config/test/rsk.exs
index 15e2768fc7de..998275b2dfe4 100644
--- a/apps/indexer/config/test/rsk.exs
+++ b/apps/indexer/config/test/rsk.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :indexer,
   json_rpc_named_arguments: [
diff --git a/apps/indexer/lib/indexer/memory/monitor.ex b/apps/indexer/lib/indexer/memory/monitor.ex
index 20c8aa702ff1..c45524b9c090 100644
--- a/apps/indexer/lib/indexer/memory/monitor.ex
+++ b/apps/indexer/lib/indexer/memory/monitor.ex
@@ -10,12 +10,11 @@ defmodule Indexer.Memory.Monitor do
   require Bitwise
   require Logger
 
-  import Bitwise
   import Indexer.Logger, only: [process: 1]
 
   alias Indexer.Memory.Shrinkable
 
-  defstruct limit: 1 <<< 32,
+  defstruct limit: Application.get_env(:indexer, :memory_limit),
             timer_interval: :timer.minutes(1),
             timer_reference: nil,
             shrinkable_set: MapSet.new()
diff --git a/config/config.exs b/config/config.exs
index 912e7d738991..e1831647ef9f 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -1,13 +1,15 @@
 # This file is responsible for configuring your application
-# and its dependencies with the aid of the Mix.Config module.
-use Mix.Config
+# and its dependencies with the aid of the Config module.
+import Config
 
 # By default, the umbrella project as well as each child
 # application will require this configuration file, ensuring
 # they all use the same configuration. While one could
 # configure all applications here, we prefer to delegate
 # back to each application for organization purposes.
-import_config "../apps/*/config/config.exs"
+for config <- "../apps/*/config/config.exs" |> Path.expand(__DIR__) |> Path.wildcard() do
+  import_config config
+end
 
 config :phoenix, :json_library, Jason
 
@@ -77,4 +79,4 @@ config :logger_json, :error,
 
 # Import environment specific config. This must remain at the bottom
 # of this file so it overrides the configuration defined above.
-import_config "#{Mix.env()}.exs"
+import_config "#{config_env()}.exs"
diff --git a/config/dev.exs b/config/dev.exs
index 7f8759b57697..21e6c9fd40f7 100644
--- a/config/dev.exs
+++ b/config/dev.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 # DO NOT make it `:debug` or all Ecto logs will be shown for indexer
 config :logger, :console, level: :info
diff --git a/config/prod.exs b/config/prod.exs
index 5503ebbacf83..2175810d041f 100644
--- a/config/prod.exs
+++ b/config/prod.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 # Do not print debug messages in production
 
diff --git a/config/runtime.exs b/config/runtime.exs
new file mode 100644
index 000000000000..7e6dbf247986
--- /dev/null
+++ b/config/runtime.exs
@@ -0,0 +1,15 @@
+import Config
+
+import Bitwise
+
+indexer_memory_limit =
+  "INDEXER_MEMORY_LIMIT"
+  |> System.get_env("1")
+  |> Integer.parse()
+  |> case do
+    {integer, ""} -> integer
+    _ -> 1
+  end
+
+config :indexer,
+  memory_limit: indexer_memory_limit <<< 32
diff --git a/config/test.exs b/config/test.exs
index f641abd24833..49a923e8fcf7 100644
--- a/config/test.exs
+++ b/config/test.exs
@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 # Print only warnings and errors during test
 
diff --git a/docker/Makefile b/docker/Makefile
index efba7a554799..e86b43b87d2b 100644
--- a/docker/Makefile
+++ b/docker/Makefile
@@ -333,6 +333,9 @@ endif
 ifdef DISPLAY_REWARDS
 	BLOCKSCOUT_CONTAINER_PARAMS += -e 'DISPLAY_REWARDS=$(DISPLAY_REWARDS)'
 endif
+ifdef INDEXER_MEMORY_LIMIT
+	BLOCKSCOUT_CONTAINER_PARAMS += -e 'INDEXER_MEMORY_LIMIT=$(INDEXER_MEMORY_LIMIT)'
+endif
 
 BLOCKSCOUT_CONTAINNER_PARAMS += -e 'ECTO_USE_SSL=false'
 
diff --git a/mix.exs b/mix.exs
index 31f8d5244a06..d643b5a655eb 100644
--- a/mix.exs
+++ b/mix.exs
@@ -7,7 +7,7 @@ defmodule BlockScout.Mixfile do
     [
       app: :block_scout,
       aliases: aliases(Mix.env()),
-      version: "2.0",
+      version: "4.1.2",
       apps_path: "apps",
       deps: deps(),
       dialyzer: dialyzer(),
diff --git a/rel/config.exs b/rel/config.exs
index 8227d3662136..eaaa52e36bac 100644
--- a/rel/config.exs
+++ b/rel/config.exs
@@ -1,3 +1,5 @@
+import Config
+
 # Import all plugins from `rel/plugins`
 # They can then be used by adding `plugin MyPlugin` to
 # either an environment, or release definition, where
@@ -33,7 +35,7 @@ use Mix.Releases.Config,
     # This sets the default release built by `mix release`
     default_release: :default,
     # This sets the default environment used by `mix release`
-    default_environment: Mix.env()
+    default_environment: config_env()
 
 # For a full list of config options for both releases
 # and environments, visit https://hexdocs.pm/distillery/config/distillery.html