diff --git a/ghost/prometheus-metrics/package.json b/ghost/prometheus-metrics/package.json
index 7517c5506a..fcf907dfd2 100644
--- a/ghost/prometheus-metrics/package.json
+++ b/ghost/prometheus-metrics/package.json
@@ -33,7 +33,7 @@
   },
   "dependencies": {
     "express": "4.21.1",
-    "prom-client": "^15.1.3",
+    "prom-client": "15.1.3",
     "stoppable": "1.1.0"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index f5d769e8c7..87674de458 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -26410,7 +26410,7 @@ progress@^2.0.0, progress@^2.0.1:
   resolved "https://registry.yarnpkg.com/progress/-/progress-2.0.3.tgz#7e8cf8d8f5b8f239c1bc68beb4eb78567d572ef8"
   integrity sha512-7PiHtLll5LdnKIMw100I+8xJXR5gW2QwWYkT6iJva0bXitZKa/XMrSbdmg3r2Xnaidz9Qumd0VPaMrZlF9V9sA==
 
-prom-client@^15.1.3:
+prom-client@15.1.3:
   version "15.1.3"
   resolved "https://registry.yarnpkg.com/prom-client/-/prom-client-15.1.3.tgz#69fa8de93a88bc9783173db5f758dc1c69fa8fc2"
   integrity sha512-6ZiOBfCywsD4k1BN9IX0uZhF+tJkV8q8llP64G5Hajs4JOeVLPCwpPVcpXy3BwYiUGgyJzsJJQeOIv7+hDSq8g==