diff --git a/Dockerfile b/Dockerfile
index 2a70ba3..505b45e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.4
+FROM alpine:3.5
 
 RUN apk --no-cache add \
   curl bind-tools netcat-openbsd fish jq coreutils