diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a9bd106ed..0c87eaaf3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,15 +16,6 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - elixir: 1.12.x
-            otp: 22.x
-            tests_may_fail: false
-          - elixir: 1.12.x
-            otp: 23.x
-            tests_may_fail: false
-          - elixir: 1.12.x
-            otp: 24.x
-            tests_may_fail: false
           - elixir: 1.13.x
             otp: 22.x
             tests_may_fail: false
@@ -98,12 +89,6 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - elixir: 1.12.x
-            otp: 22.x
-          - elixir: 1.12.x
-            otp: 23.x
-          - elixir: 1.12.x
-            otp: 24.x
           - elixir: 1.13.x
             otp: 22.x
           - elixir: 1.13.x
diff --git a/apps/debug_adapter/mix.exs b/apps/debug_adapter/mix.exs
index 3b274f969..18e806d1f 100644
--- a/apps/debug_adapter/mix.exs
+++ b/apps/debug_adapter/mix.exs
@@ -19,7 +19,7 @@ defmodule ElixirLS.DebugAdapter.MixProject do
       config_path: "../../config/config.exs",
       deps_path: "../../deps",
       lockfile: "../../mix.lock",
-      elixir: ">= 1.12.0",
+      elixir: ">= 1.13.0",
       build_embedded: false,
       start_permanent: true,
       build_per_environment: false,
diff --git a/apps/elixir_ls_utils/lib/minimum_version.ex b/apps/elixir_ls_utils/lib/minimum_version.ex
index 0012783e1..d73d9a5d0 100644
--- a/apps/elixir_ls_utils/lib/minimum_version.ex
+++ b/apps/elixir_ls_utils/lib/minimum_version.ex
@@ -16,7 +16,7 @@ defmodule ElixirLS.Utils.MinimumVersion do
   end
 
   def check_elixir_version do
-    if Version.match?(System.version(), ">= 1.12.0") do
+    if Version.match?(System.version(), ">= 1.13.0") do
       if Regex.match?(~r/-/, System.version()) do
         {:error,
          "Only official elixir releases are supported. (Currently running v#{System.version()})"}
@@ -25,7 +25,7 @@ defmodule ElixirLS.Utils.MinimumVersion do
       end
     else
       {:error,
-       "Elixir versions below 1.12.0 are not supported. (Currently running v#{System.version()})"}
+       "Elixir versions below 1.13.0 are not supported. (Currently running v#{System.version()})"}
     end
   end
 
diff --git a/apps/elixir_ls_utils/mix.exs b/apps/elixir_ls_utils/mix.exs
index 517f56f45..c77e10653 100644
--- a/apps/elixir_ls_utils/mix.exs
+++ b/apps/elixir_ls_utils/mix.exs
@@ -20,7 +20,7 @@ defmodule ElixirLS.Utils.MixProject do
       deps_path: "../../deps",
       elixirc_paths: elixirc_paths(Mix.env()),
       lockfile: "../../mix.lock",
-      elixir: ">= 1.12.0",
+      elixir: ">= 1.13.0",
       build_embedded: false,
       start_permanent: false,
       build_per_environment: false,
diff --git a/apps/language_server/lib/language_server/ast_utils.ex b/apps/language_server/lib/language_server/ast_utils.ex
index c1a9113cc..5aa6006d1 100644
--- a/apps/language_server/lib/language_server/ast_utils.ex
+++ b/apps/language_server/lib/language_server/ast_utils.ex
@@ -75,7 +75,7 @@ defmodule ElixirLS.LanguageServer.AstUtils do
                 end
 
               lines = SourceFile.lines(literal)
-              # meta[:indentation] is nil on 1.12
+              # meta[:indentation] is nil on 1.12, not sure this is needed in 1.13+
               indentation = Keyword.get(meta, :indentation, 0)
 
               {line + length(lines), indentation + get_delimiter_length(delimiter)}
@@ -224,7 +224,7 @@ defmodule ElixirLS.LanguageServer.AstUtils do
 
               {last[:line] - 1, last[:column] - 1 + last_length}
             else
-              # last is nil on 1.12
+              # last is nil on 1.12, not sure this is needed in 1.13+
               get_eoe_by_formatting(ast, {line, column}, options)
             end
 
diff --git a/apps/language_server/mix.exs b/apps/language_server/mix.exs
index 6d8642ef9..f463e2752 100644
--- a/apps/language_server/mix.exs
+++ b/apps/language_server/mix.exs
@@ -15,7 +15,7 @@ defmodule ElixirLS.LanguageServer.MixProject do
     [
       app: :language_server,
       version: @version,
-      elixir: ">= 1.12.0",
+      elixir: ">= 1.13.0",
       build_path: "../../_build",
       config_path: "../../config/config.exs",
       deps_path: "../../deps",
diff --git a/mix.exs b/mix.exs
index ee1b6cdbc..5950499c8 100644
--- a/mix.exs
+++ b/mix.exs
@@ -9,7 +9,7 @@ defmodule ElixirLS.Mixfile do
       start_permanent: Mix.env() == :prod,
       build_per_environment: false,
       deps: deps(),
-      elixir: ">= 1.12.0",
+      elixir: ">= 1.13.0",
       dialyzer: [
         plt_add_apps: [:dialyxir_vendored, :debugger, :dialyzer, :ex_unit, :hex, :mix],
         flags: [