diff --git a/.circleci/config.yml b/.circleci/config.yml
index 756e8d0..5b490fa 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -5,7 +5,7 @@ jobs:
     docker:
       # using custom image, see .circleci/images/primary/Dockerfile
       # - image: govgo/robotgoci:1.10.3
-      - image: golang:1.20.3
+      - image: golang:1.21.0
     working_directory: /gopath/src/github.com/go-vgo/robotgo
     steps:
       - checkout
diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index e9ecb35..2e4ff92 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -10,10 +10,10 @@ jobs:
     runs-on: ${{ matrix.os }}
 
     steps:
-      - name: Set up Go 1.20
+      - name: Set up Go 1.21.0
         uses: actions/setup-go@v1
         with:
-          go-version: 1.20
+          go-version: 1.21.0
         id: go
 
       - name: Check out code into the Go module directory
diff --git a/appveyor.yml b/appveyor.yml
index 2c2bc64..67a5d86 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -34,7 +34,7 @@ environment:
       PATH: C:\msys64\mingw32\bin\;C:\Program Files (x86)\NSIS\;%PATH%
   # - COMPILER: MINGW_W64
   #   ARCHITECTURE: x64
-  GOVERSION: 1.20.3
+  GOVERSION: 1.21.0
   # GOPATH: c:\gopath
 
 # scripts that run after cloning repository