diff --git a/docker/Dockerfile b/docker/Dockerfile
index 9a0a243..9fe003f 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:latest
+FROM alpine:3
 
 RUN apk --no-cache upgrade
 RUN apk add --no-cache apache2 \