diff --git a/docker/dockerfiles/joex.dockerfile b/docker/dockerfiles/joex.dockerfile
index a65abc30..c4e54f7b 100644
--- a/docker/dockerfiles/joex.dockerfile
+++ b/docker/dockerfiles/joex.dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3
+FROM alpine:20230329
 
 ARG version=
 ARG joex_url=
diff --git a/docker/dockerfiles/restserver.dockerfile b/docker/dockerfiles/restserver.dockerfile
index 532eb049..c86ba46f 100644
--- a/docker/dockerfiles/restserver.dockerfile
+++ b/docker/dockerfiles/restserver.dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3
+FROM alpine:20230329
 
 ARG version=
 ARG restserver_url=