diff --git a/.github/workflows/format.yml b/.github/workflows/format.yml
index 3636086c..1071a80e 100644
--- a/.github/workflows/format.yml
+++ b/.github/workflows/format.yml
@@ -8,6 +8,10 @@ on:
     branches:
       - main
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   build:
     runs-on: ubuntu-22.04
@@ -23,4 +27,3 @@ jobs:
     - name: check code format
       run: |
         clang-format-15 --style=file --Werror --dry-run --verbose `find . -type d \( -name '3rdparty' \) -prune -o -regex '.*\.\(cpp\|hpp\)' -print`
-
diff --git a/.github/workflows/linux-build.yml b/.github/workflows/linux-build.yml
index 5d44cef4..916c2b04 100644
--- a/.github/workflows/linux-build.yml
+++ b/.github/workflows/linux-build.yml
@@ -8,6 +8,11 @@ on:
     branches:
       - main
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.ref || github.run_id }}
+  cancel-in-progress: true
+
+
 jobs:
   build:
     strategy:
@@ -68,4 +73,3 @@ jobs:
     - name: unit tests
       run: |
         cmake --build build --target test
-
diff --git a/.github/workflows/qt5.yml b/.github/workflows/qt5.yml
index 695338d8..1a9e80fa 100644
--- a/.github/workflows/qt5.yml
+++ b/.github/workflows/qt5.yml
@@ -8,6 +8,10 @@ on:
     branches:
       - main
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   build:
     runs-on: ubuntu-22.04
@@ -74,4 +78,3 @@ jobs:
           (cd examples/CalcQt; cucumber)
           wait %
         done
-
diff --git a/.github/workflows/run-all.yml b/.github/workflows/run-all.yml
index e6204982..879981ea 100644
--- a/.github/workflows/run-all.yml
+++ b/.github/workflows/run-all.yml
@@ -8,6 +8,10 @@ on:
     branches:
       - main
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   build-linux:
     runs-on: ubuntu-22.04
diff --git a/.github/workflows/windows-build.yml b/.github/workflows/windows-build.yml
index 2ba915b6..2025f0f5 100644
--- a/.github/workflows/windows-build.yml
+++ b/.github/workflows/windows-build.yml
@@ -8,6 +8,10 @@ on:
     branches:
       - main
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   build:
     strategy: