diff --git a/app/Dockerfile b/app/Dockerfile
index 133269e..46c8ee0 100644
--- a/app/Dockerfile
+++ b/app/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.6
+FROM alpine:3.9
 
 # Some ENV variables
 ENV PATH="/mattermost/bin:${PATH}"