diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index af35f4f26..1ba938cd6 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -11,6 +11,10 @@ on:
     - cron: '0 19 * * 1'
   workflow_dispatch:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   CodeQL-Build:
 
diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index 28e0b74fd..85b1b7052 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -9,6 +9,10 @@ on:
   pull_request:
   workflow_dispatch:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   xcode_1:
     runs-on: macos-10.15
diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
index 8c811150e..8f70f9586 100644
--- a/.github/workflows/ubuntu.yml
+++ b/.github/workflows/ubuntu.yml
@@ -9,6 +9,10 @@ on:
   pull_request:
   workflow_dispatch:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   ci_test_clang:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 8d3e54358..fb6a997db 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -9,6 +9,10 @@ on:
   pull_request:
   workflow_dispatch:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   mingw:
     runs-on: windows-latest