diff --git a/postfix/Dockerfile b/postfix/Dockerfile
index ffb3440..160db38 100644
--- a/postfix/Dockerfile
+++ b/postfix/Dockerfile
@@ -1,5 +1,4 @@
-# needed for postfix 3.4
-FROM alpine:edge
+FROM alpine
 
 RUN apk add --no-cache \
         ca-certificates \