diff --git a/images/dovecot/Dockerfile b/images/dovecot/Dockerfile
index 7dc7730b4607db2dfe4ab1584f74c881920a2af2..7b2f4b42aa10de904c05031f46e72a167b9a3805 100644
--- a/images/dovecot/Dockerfile
+++ b/images/dovecot/Dockerfile
@@ -1,4 +1,4 @@
-FROM docker.io/library/alpine:3.16.3
+FROM docker.io/library/alpine:3.17.0
 
 # Update base system
 RUN apk update
diff --git a/images/postfix/Dockerfile b/images/postfix/Dockerfile
index 7210ee23c2e616bad70714ae334bad7b7afc527e..9bc223fbd803d6858896781eb04f634f65adac25 100644
--- a/images/postfix/Dockerfile
+++ b/images/postfix/Dockerfile
@@ -1,4 +1,4 @@
-FROM docker.io/library/alpine:3.16.3
+FROM docker.io/library/alpine:3.17.0
 
 # Install pre-requirements
 RUN apk update