diff --git a/webdav/Dockerfile b/webdav/Dockerfile
index 123df42..adb1f54 100644
--- a/webdav/Dockerfile
+++ b/webdav/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:latest
+FROM alpine:3.12
 LABEL maintainer "J. Elfring <devops@elfrinjo.de>"
 
 ## Install prereqs