diff --git a/.env.mainnet b/.env.mainnet
index 239370e..f598ef1 100644
--- a/.env.mainnet
+++ b/.env.mainnet
@@ -8,7 +8,7 @@ OP_GETH_SEQUENCER_HTTP=https://mainnet-sequencer.base.org
 OP_NODE_L1_ETH_RPC=https://1rpc.io/eth
 
 # [required] replace with your preferred L1 CL beacon endpoint:
-# OP_NODE_L1_BEACON=https://your.mainnet.beacon.node/endpoint-here
+OP_NODE_L1_BEACON=https://your.mainnet.beacon.node/endpoint-here
 
 # auth secret used by op-geth engine API:
 OP_NODE_L2_ENGINE_AUTH_RAW=688f5d737bad920bdfb2fc2f488d6b6209eebda1dae949a8de91398d932c517a
diff --git a/.env.sepolia b/.env.sepolia
index bb6e447..64b9226 100644
--- a/.env.sepolia
+++ b/.env.sepolia
@@ -8,7 +8,7 @@ OP_GETH_SEQUENCER_HTTP=https://sepolia-sequencer.base.org
 OP_NODE_L1_ETH_RPC=https://rpc.sepolia.org
 
 # [required] replace with your preferred L1 CL beacon endpoint:
-# OP_NODE_L1_BEACON=https://your.sepolia.beacon.node/endpoint-here
+OP_NODE_L1_BEACON=https://your.sepolia.beacon.node/endpoint-here
 
 # auth secret used by op-geth engine API:
 OP_NODE_L2_ENGINE_AUTH_RAW=688f5d737bad920bdfb2fc2f488d6b6209eebda1dae949a8de91398d932c517a