diff --git a/core/dovecot/Dockerfile b/core/dovecot/Dockerfile
index 8fcc391b..c2d7b063 100644
--- a/core/dovecot/Dockerfile
+++ b/core/dovecot/Dockerfile
@@ -1,4 +1,4 @@
-ARG DISTRO=alpine:3.14
+ARG DISTRO=alpine:3.14.2
 
 FROM $DISTRO