diff --git a/oada/services/write-handler/package.json b/oada/services/write-handler/package.json
index 0fdeae83..e0ce51b6 100644
--- a/oada/services/write-handler/package.json
+++ b/oada/services/write-handler/package.json
@@ -46,7 +46,7 @@
     "@oada/lib-arangodb": "workspace:^",
     "@oada/lib-config": "workspace:^",
     "@oada/lib-kafka": "workspace:^",
-    "@oada/lib-prom": "workspace:^",
+    "@oada/lib-prom": "3.5.1",
     "@oada/pino-debug": "workspace:^",
     "debug": "^4.3.7",
     "json-ptr": "^3.1.1",