diff --git a/dovecot/Makefile b/dovecot/Makefile
index ec3b20b..8e19cb7 100644
--- a/dovecot/Makefile
+++ b/dovecot/Makefile
@@ -1,5 +1,5 @@
 VERSION=2.3.16
-BUILD=3
+BUILD=4
 IMAGE=dovecot
 REGISTRY=gitea.geekhome.org/ghp