diff --git a/reference-rpc-endpoint.json b/reference-rpc-endpoint.json
index e8f2575a..88d791b7 100644
--- a/reference-rpc-endpoint.json
+++ b/reference-rpc-endpoint.json
@@ -257,7 +257,7 @@
   "hashkey-testnet": {
     "id": 133,
     "urls": [
-      "https://testnet.hsk.xyz"
+      "https://hashkeychain-testnet.alt.technology"
     ]
   },
   "polygon": {