diff --git a/.circleci/config.yml b/.circleci/config.yml
index cad746a..ec43464 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -1,7 +1,7 @@
 defaults: &defaults
   working_directory: /go/src/moul.io/sshportal
   docker:
-    - image: circleci/golang:1.11.4
+    - image: circleci/golang:1.12.1
   environment:
     GO111MODULE: "on"
 
diff --git a/Dockerfile b/Dockerfile
index cadede8..739e5ad 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # build
-FROM            golang:1.11.4 as builder
+FROM golang:1.12.1 as builder
 ENV             GO111MODULE=on
 COPY            . /go/src/moul.io/sshportal
 WORKDIR         /go/src/moul.io/sshportal