diff --git a/argocd/applications/xslt-lab.yaml b/argocd/applications/xslt-lab.yaml
index a905ae3..bb43da8 100644
--- a/argocd/applications/xslt-lab.yaml
+++ b/argocd/applications/xslt-lab.yaml
@@ -8,7 +8,7 @@ spec:
   sources:
   - repoURL: https://blog.xsltplayground.com
     chart: xslt-playground
-    targetRevision: 0.3.0
+    targetRevision: 0.4.0
     helm:
       releaseName: lab
       valueFiles: