diff --git a/environments/core/applicationsets/kube-prometheus-stack-applicationset.yaml b/environments/core/applicationsets/kube-prometheus-stack-applicationset.yaml
index e61fcfb5..451e2cfd 100644
--- a/environments/core/applicationsets/kube-prometheus-stack-applicationset.yaml
+++ b/environments/core/applicationsets/kube-prometheus-stack-applicationset.yaml
@@ -17,7 +17,7 @@ spec:
         targetRevision: HEAD
       - cluster: devsecops-testing
         cluster-name: devsecops-testing
-        targetRevision: HEAD
+        targetRevision: chore/upgrade_prom_stack_to_51.0.2
       - cluster: pre-prod
         cluster-name: pre-prod
         targetRevision: HEAD