diff --git a/compose/.env.example b/compose/.env.example
index b43748f..f9cb27e 100644
--- a/compose/.env.example
+++ b/compose/.env.example
@@ -6,7 +6,7 @@
 # Please refer to our documentation to see all possible variables:
 #   https://www.openproject.org/docs/installation-and-operations/configuration/environment/
 #
-TAG=12
+TAG=13
 OPENPROJECT_HTTPS=false
 OPENPROJECT_HOST__NAME=localhost
 PORT=127.0.0.1:8080