diff --git a/oada/services/auth/package.json b/oada/services/auth/package.json
index 4184a4de..f4b8ce23 100644
--- a/oada/services/auth/package.json
+++ b/oada/services/auth/package.json
@@ -66,7 +66,7 @@
     "@oada/formats": "^4.1.0",
     "@oada/lib-arangodb": "workspace:^",
     "@oada/lib-config": "workspace:^",
-    "@oada/lib-prom": "workspace:^",
+    "@oada/lib-prom": "3.5.1",
     "@oada/lookup": "^2.0.0",
     "@oada/models": "workspace:^",
     "@oada/pino-debug": "workspace:^",