diff --git a/Dockerfile b/Dockerfile
index c8d298e..b08c00a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.8
+FROM alpine:3.9
 MAINTAINER Adrian Gschwend <adrian.gschwend@zazuko.com>
 
 # Only update below