diff --git a/Dockerfile b/Dockerfile
index c334bff..347c5a9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.8
+FROM alpine:3.12
 
 RUN apk add -U ca-certificates tzdata && rm -Rf /var/cache/apk/*
 COPY cm /
diff --git a/go.mod b/go.mod
index cb9677a..e0e2b38 100644
--- a/go.mod
+++ b/go.mod
@@ -1,5 +1,7 @@
 module github.com/aerokube/cm
 
+go 1.14
+
 require (
 	github.com/Masterminds/semver/v3 v3.0.1
 	github.com/Microsoft/hcsshim v0.8.6 // indirect