diff --git a/script/start-proposer.sh b/script/start-proposer.sh
index b18d4e9..7c9191d 100755
--- a/script/start-proposer.sh
+++ b/script/start-proposer.sh
@@ -5,7 +5,7 @@ set -eou pipefail
 if [ "$ENABLE_PROPOSER" == "true" ]; then
     taiko-client proposer \
       --l1.ws ${L1_ENDPOINT_WS} \
-      --l2.ws ws://l2_execution_engine:8546 \
+      --l2.ws http://l2_execution_engine:8545 \
       --taikoL1 ${TAIKO_L1_ADDRESS} \
       --taikoL2 ${TAIKO_L2_ADDRESS} \
       --l1.proposerPrivKey ${L1_PROPOSER_PRIVATE_KEY} \