diff --git a/.github/workflows/build-binary-package.yml b/.github/workflows/build-binary-package.yml
index 7ed0131..18b9d49 100644
--- a/.github/workflows/build-binary-package.yml
+++ b/.github/workflows/build-binary-package.yml
@@ -27,7 +27,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v4
       with:
-        go-version: 1.20.7
+        go-version: 1.21.5
 
     - name: Build all platforms
       run: |
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 812e661..903037b 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -25,7 +25,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v4
       with:
-        go-version: 1.20.7
+        go-version: 1.21.5
 
     - name: Initialize CodeQL
       uses: github/codeql-action/init@v2
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 036bef5..80b721c 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -24,7 +24,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v4
       with:
-        go-version: 1.20.7
+        go-version: 1.21.5
 
     - name: Build
       run: |
diff --git a/.github/workflows/tests_deb.yml b/.github/workflows/tests_deb.yml
index 6f8b6fa..a0eff4f 100644
--- a/.github/workflows/tests_deb.yml
+++ b/.github/workflows/tests_deb.yml
@@ -24,7 +24,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v4
       with:
-        go-version: 1.20.7
+        go-version: 1.21.5
 
     - name: Cache virtualenvs
       id: cache-pipenv
diff --git a/Dockerfile b/Dockerfile
index 62b8a5e..c35d00b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-ARG GOVERSION=1.20.7
+ARG GOVERSION=1.21.5
 
 FROM golang:${GOVERSION}-alpine AS build