diff --git a/production/mempool-config.mainnet-lightning.json b/production/mempool-config.mainnet-lightning.json
index 546c58163..37e407aeb 100644
--- a/production/mempool-config.mainnet-lightning.json
+++ b/production/mempool-config.mainnet-lightning.json
@@ -15,7 +15,7 @@
     "PASSWORD": "__BITCOIN_RPC_PASS__"
   },
   "ESPLORA": {
-    "REST_API_URL": "http://127.0.0.1:4000"
+    "UNIX_SOCKET_PATH": "/bitcoin/socket/esplora-bitcoin-mainnet"
   },
   "LIGHTNING": {
     "ENABLED": true,