diff --git a/op/geth/mantle-sepolia-op-geth-archive-leveldb-hash.yml b/op/geth/mantle-sepolia-op-geth-archive-leveldb-hash.yml
index 212cd8f9..97a6f904 100644
--- a/op/geth/mantle-sepolia-op-geth-archive-leveldb-hash.yml
+++ b/op/geth/mantle-sepolia-op-geth-archive-leveldb-hash.yml
@@ -25,6 +25,7 @@ services:
       - 8551
     environment:
       - GETH_ROLLUP_DISABLETXPOOLGOSSIP=true
+      - GETH_ROLLUP_SEQUENCERHTTP=https://rpc.sepolia.mantle.xyz
     entrypoint: /bin/sh -c 'exec geth "$@"' --
     command:
       - --datadir=/data
diff --git a/op/geth/mantle-sepolia-op-geth-pruned-leveldb-hash.yml b/op/geth/mantle-sepolia-op-geth-pruned-leveldb-hash.yml
index 52c1b504..d3adb753 100644
--- a/op/geth/mantle-sepolia-op-geth-pruned-leveldb-hash.yml
+++ b/op/geth/mantle-sepolia-op-geth-pruned-leveldb-hash.yml
@@ -25,6 +25,7 @@ services:
       - 8551
     environment:
       - GETH_ROLLUP_DISABLETXPOOLGOSSIP=true
+      - GETH_ROLLUP_SEQUENCERHTTP=https://rpc.sepolia.mantle.xyz
     entrypoint: /bin/sh -c 'exec geth "$@"' --
     command:
       - --datadir=/data