diff --git a/Dockerfile b/Dockerfile
index c9de725..85ea2d5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.8
+FROM alpine:3.9
 MAINTAINER Andrey Arapov <andrey.arapov@nixaid.com>
 
 RUN apk update && \