diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 3cfe090d3..3176c4e32 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -25,7 +25,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v2
         with:
-          go-version: 1.15.x
+          go-version: 1.16.x
       - name: Download modules
         run: |
           go mod download
diff --git a/Dockerfile b/Dockerfile
index 7c408fe00..e3df7541c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.15-alpine as builder
+FROM golang:1.16-alpine as builder
 
 ARG TARGETPLATFORM
 ARG REVISON
diff --git a/go.mod b/go.mod
index fad246e54..ce7a77201 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/fluxcd/flagger
 
-go 1.15
+go 1.16
 
 require (
 	github.com/Masterminds/semver/v3 v3.0.3