diff --git a/library/ix-dev/charts/pihole/upgrade_strategy b/library/ix-dev/charts/pihole/upgrade_strategy
index d584440143..509e2f54f9 100755
--- a/library/ix-dev/charts/pihole/upgrade_strategy
+++ b/library/ix-dev/charts/pihole/upgrade_strategy
@@ -8,7 +8,7 @@ from catalog_update.upgrade_strategy import datetime_versioning
 def newer_mapping(image_tags):
     key = list(image_tags.keys())[0]
     tags = {t for t in image_tags[key]}
-    version = datetime_versioning(list(tags), '%Y-%m-%d')
+    version = datetime_versioning(list(tags), '%Y.%m.%d')
     if not version:
         return {}