diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2fbe3f764..34683e60f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,7 +13,7 @@ jobs:
     steps:
       - uses: actions/setup-go@v4
         with:
-          go-version: '1.20'
+          go-version: "1.21"
       - uses: actions/checkout@v4
       - name: Run tests
         run: |
@@ -26,13 +26,13 @@ jobs:
     steps:
       - uses: actions/setup-go@v4
         with:
-          go-version: '1.20'
+          go-version: "1.21"
       - uses: actions/checkout@v4
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v3
         with:
           # Required: the version of golangci-lint is required and must be specified without patch version
-          version: v1.53.3
+          version: v1.54.2
           # In general linting is quite fast with warm caches, but a fresh run might take some time.
           args: --timeout 5m
 
@@ -42,7 +42,7 @@ jobs:
     steps:
       - uses: actions/setup-go@v4
         with:
-          go-version: '1.20'
+          go-version: "1.21"
       - uses: actions/checkout@v4
       - name: Check imports
         shell: bash
diff --git a/.github/workflows/goreleaser.yml b/.github/workflows/goreleaser.yml
index acd5e1405..4179293e6 100644
--- a/.github/workflows/goreleaser.yml
+++ b/.github/workflows/goreleaser.yml
@@ -18,7 +18,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v4
         with:
-          go-version: "1.20"
+          go-version: "1.21"
 
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3
diff --git a/.github/workflows/test_e2e.yml b/.github/workflows/test_e2e.yml
index c7cb9b237..727fe76f2 100644
--- a/.github/workflows/test_e2e.yml
+++ b/.github/workflows/test_e2e.yml
@@ -16,7 +16,7 @@ jobs:
     steps:
       - uses: actions/setup-go@v4
         with:
-          go-version: '1.20'
+          go-version: "1.21"
       - uses: actions/checkout@master
       - uses: hetznercloud/tps-action@main
         with:
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 41cdbf212..467287a54 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -31,7 +31,7 @@ test:lint:
 
 test:unit:
   stage: test
-  image: golang:1.20
+  image: golang:1.21
   variables:
     NODE_NAME: "test"
   script:
diff --git a/README.md b/README.md
index 2fd8a1680..48b2c9cc6 100644
--- a/README.md
+++ b/README.md
@@ -217,7 +217,7 @@ that will be billed.
 
 1x CPX21 (Ubuntu 18.04)
 
-**Requirements: Docker and Go 1.20**
+**Requirements: Docker and Go 1.21**
 
 1. Configure your environment correctly
 
diff --git a/go.mod b/go.mod
index cfa72e40e..3074fcb5a 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/hetznercloud/hcloud-cloud-controller-manager
 
-go 1.20
+go 1.21.1
 
 require (
 	github.com/hetznercloud/hcloud-go/v2 v2.1.1
diff --git a/hack/Dockerfile b/hack/Dockerfile
index 8ccd227a6..27f1dd07f 100644
--- a/hack/Dockerfile
+++ b/hack/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.20 as builder
+FROM golang:1.21 as builder
 WORKDIR /hccm
 ADD go.mod go.sum /hccm/
 RUN go mod download