diff --git a/apps/templates/gatus-folder.yaml b/apps/templates/gatus-folder.yaml
index be630ef..7c04004 100644
--- a/apps/templates/gatus-folder.yaml
+++ b/apps/templates/gatus-folder.yaml
@@ -18,4 +18,7 @@ spec:
     syncOptions:
     - CreateNamespace=true
     automated:
+      # Each config change generates a new gatus-config-<hash> ConfigMap;
+      # prune removes the old one.
+      prune: true
       selfHeal: true