diff --git a/.env.mainnet b/.env.mainnet
index c5bd040b..36056926 100644
--- a/.env.mainnet
+++ b/.env.mainnet
@@ -40,7 +40,7 @@ BASE_NODE_L1_TRUST_RPC="false"
 OP_NODE_L2_ENGINE_KIND=reth
 OP_NODE_L2_ENGINE_RPC=http://execution:8551
 
-BASE_NODE_L2_ENGINE_RPC=ws://execution:8551
+BASE_NODE_L2_ENGINE_RPC=http://execution:8551
 BASE_NODE_L2_ENGINE_AUTH=/tmp/engine-auth-jwt
 BASE_NODE_L2_ENGINE_AUTH_RAW=688f5d737bad920bdfb2fc2f488d6b6209eebda1dae949a8de91398d932c517a