diff --git a/foundry.toml b/foundry.toml
index a28116b04..c2ecb1775 100644
--- a/foundry.toml
+++ b/foundry.toml
@@ -72,10 +72,10 @@ mumbai = "${ETH_NODE_URI_MUMBAI}"
 base = "${ETH_NODE_URI_BASE}"
 
 [etherscan]
-mainnet = { key = "${MAINNET_ETHERSCAN_API_KEY}", chain = "1" }
+mainnet = { key = "${MAINNET_ETHERSCAN_API_KEY}", url = "https://api.etherscan.io/v2/api?chainid=1", chain = "1" }
 arbitrum = { key = "${ARBITRUM_ETHERSCAN_API_KEY}", url = "https://api.etherscan.io/v2/api?chainid=42161", chain = "42161" }
 aurora = { key = "${AURORA_ETHERSCAN_API_KEY}", url = "https://explorer.mainnet.aurora.dev/api", chain = "1313161554", verifier = "blockscout" }
-avalanche = { key = "${AVALANCHE_ETHERSCAN_API_KEY}", url = "https://api.snowtrace.io/api", chain = "43114" }
+avalanche = { key = "${AVALANCHE_ETHERSCAN_API_KEY}", url = "https://api.etherscan.io/v2/api?chainid=43114", chain = "43114" }
 base = { key = "${BASE_ETHERSCAN_API_KEY}", url = "https://api.etherscan.io/v2/api?chainid=8453", chain = "8453" }
 blast = { key = "${BLAST_ETHERSCAN_API_KEY}", url = "https://api.etherscan.io/v2/api?chainid=81457", chain = "81457" }
 boba = { key = "${BOBA_ETHERSCAN_API_KEY}", url = "https://api.bobascan.com/api", chain = "288" }