diff --git a/packages/opal-client/opal_client/tests/data_updater_test.py b/packages/opal-client/opal_client/tests/data_updater_test.py
index 2b34804d..f2b27b0f 100644
--- a/packages/opal-client/opal_client/tests/data_updater_test.py
+++ b/packages/opal-client/opal_client/tests/data_updater_test.py
@@ -248,6 +248,7 @@ async def test_data_updater_with_report_callback(server):
         res = await session.get(CHECK_DATA_UPDATE_CALLBACK_URL)
         current_callback_count = await res.json()
 
+    proc2 = None
     try:
         proc = multiprocessing.Process(target=trigger_update, daemon=True)
         proc.start()
@@ -283,7 +284,8 @@ async def test_data_updater_with_report_callback(server):
     finally:
         await updater.stop()
         proc.terminate()
-        proc2.terminate()
+        if proc2:
+            proc2.terminate()
 
 
 @pytest.mark.asyncio
diff --git a/packages/requires.txt b/packages/requires.txt
index 43f5a740..d83a946a 100644
--- a/packages/requires.txt
+++ b/packages/requires.txt
@@ -2,7 +2,7 @@ idna>=3.3,<4
 typer>=0.4.1,<1
 fastapi>=0.109.1,<1
 fastapi_websocket_pubsub==0.3.7
-fastapi_websocket_rpc>=0.1.21,<1
+fastapi_websocket_rpc==0.1.25
 gunicorn>=22.0.0,<23
 pydantic[email]>=1.9.1,<2
 typing-extensions;python_version<'3.8'