diff --git a/blockchain-watcher/config/default.json b/blockchain-watcher/config/default.json
index 78a5b4dc..50cf769c 100644
--- a/blockchain-watcher/config/default.json
+++ b/blockchain-watcher/config/default.json
@@ -81,7 +81,7 @@
       "name": "acala",
       "network": "testnet",
       "chainId": 12,
-      "rpcs": ["https://eth-rpc-acala-testnet.aca-staging.network"],
+      "rpcs": ["https://eth-rpc-tc9.aca-staging.network"],
       "timeout": 10000
     },
     "klaytn": {