diff --git a/Dockerfile.multi-stage b/Dockerfile.multi-stage
index 1960b0e1d8..a86c5e67fb 100644
--- a/Dockerfile.multi-stage
+++ b/Dockerfile.multi-stage
@@ -1,4 +1,4 @@
-FROM golang:1.12.5-alpine3.9 as builder
+FROM golang:1.13.1-alpine3.10 as builder
 
 ADD . $GOPATH/src/github.com/thanos-io/thanos
 WORKDIR $GOPATH/src/github.com/thanos-io/thanos
diff --git a/Dockerfile.thanos-ci b/Dockerfile.thanos-ci
index cb8ce2a985..cf9e39a077 100644
--- a/Dockerfile.thanos-ci
+++ b/Dockerfile.thanos-ci
@@ -1,5 +1,5 @@
 # Available from https://hub.docker.com/r/circleci/golang/
-FROM circleci/golang:1.12.5
+FROM circleci/golang:1.13.1
 
 ENV GOBIN=/go/bin
 
diff --git a/go.mod b/go.mod
index 87f8d752fa..ae304471fc 100644
--- a/go.mod
+++ b/go.mod
@@ -65,3 +65,5 @@ replace (
 	k8s.io/klog => k8s.io/klog v0.3.1
 	k8s.io/kube-openapi => k8s.io/kube-openapi v0.0.0-20190228160746-b3a7cee44a30
 )
+
+go 1.13