diff --git a/.github/workflows/e2e.yaml b/.github/workflows/e2e.yaml
index 5263bbfd4..b432ee359 100644
--- a/.github/workflows/e2e.yaml
+++ b/.github/workflows/e2e.yaml
@@ -23,7 +23,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v2
         with:
-          go-version: 1.15.x
+          go-version: 1.16.x
       - name: Setup Kubernetes
         uses: engineerd/setup-kind@v0.5.0
         with:
diff --git a/Dockerfile b/Dockerfile
index e90f2eced..2bb35a061 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # Docker buildkit multi-arch build requires golang alpine
-FROM golang:1.15-alpine as builder
+FROM golang:1.16-alpine as builder
 
 WORKDIR /workspace
 
diff --git a/api/go.mod b/api/go.mod
index 626fedbd8..401fb6b6b 100644
--- a/api/go.mod
+++ b/api/go.mod
@@ -1,6 +1,6 @@
 module github.com/fluxcd/helm-controller/api
 
-go 1.15
+go 1.16
 
 require (
 	github.com/fluxcd/pkg/apis/kustomize v0.1.0
diff --git a/go.mod b/go.mod
index 786296491..b199d6d89 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/fluxcd/helm-controller
 
-go 1.15
+go 1.16
 
 replace github.com/fluxcd/helm-controller/api => ./api