diff --git a/Chart.yaml b/Chart.yaml
index b072d50..460f829 100644
--- a/Chart.yaml
+++ b/Chart.yaml
@@ -3,7 +3,7 @@ name: roundcube
 description: Helm chart for roundcube
 type: application
 version: "0.2.1"
-appVersion: "1.5.2-apache"
+appVersion: "1.5.3-apache"
 icon: https://upload.wikimedia.org/wikipedia/commons/e/e3/Roundcube_logo_icon.svg
 
 keywords: