diff --git a/.github/workflows/build_test.yml b/.github/workflows/build_test.yml
index 763a9b8025..ae03f591b3 100644
--- a/.github/workflows/build_test.yml
+++ b/.github/workflows/build_test.yml
@@ -15,6 +15,9 @@ on:
 jobs:
   build:
     runs-on: ubuntu-20.04
+    concurrency:
+      group: ${{ github.workflow }}-${{ matrix.env.COMPILER }}-${{ matrix.env.COMPILER_VERSION }}-${{ github.ref }}
+      cancel-in-progress: true
     strategy:
       fail-fast: false
       matrix:
diff --git a/.github/workflows/cifuzz.yml b/.github/workflows/cifuzz.yml
index 18476cb641..2053c11a0f 100644
--- a/.github/workflows/cifuzz.yml
+++ b/.github/workflows/cifuzz.yml
@@ -20,6 +20,9 @@ jobs:
   Fuzzing:
     runs-on: ubuntu-latest
     if: github.repository == 'systemd/systemd'
+    concurrency:
+      group: ${{ github.workflow }}-${{ github.ref }}
+      cancel-in-progress: true
     strategy:
       fail-fast: false
       matrix:
diff --git a/.github/workflows/linter.yml b/.github/workflows/linter.yml
index 1136c0523b..2c3c58ad58 100644
--- a/.github/workflows/linter.yml
+++ b/.github/workflows/linter.yml
@@ -13,6 +13,9 @@ jobs:
   build:
     name: Lint Code Base
     runs-on: ubuntu-latest
+    concurrency:
+      group: ${{ github.workflow }}-${{ github.ref }}
+      cancel-in-progress: true
 
     steps:
       - name: Repo checkout
diff --git a/.github/workflows/mkosi.yml b/.github/workflows/mkosi.yml
index 9ae40e316f..11cb3f63b5 100644
--- a/.github/workflows/mkosi.yml
+++ b/.github/workflows/mkosi.yml
@@ -15,6 +15,9 @@ on:
 jobs:
   ci:
     runs-on: ubuntu-20.04
+    concurrency:
+      group: ${{ github.workflow }}-${{ matrix.distro }}-${{ github.ref }}
+      cancel-in-progress: true
     strategy:
       fail-fast: false
       matrix:
diff --git a/.github/workflows/unit_tests.yml b/.github/workflows/unit_tests.yml
index d6c3fafabd..2bb8400fdf 100644
--- a/.github/workflows/unit_tests.yml
+++ b/.github/workflows/unit_tests.yml
@@ -11,6 +11,9 @@ on:
 jobs:
   build:
     runs-on: ubuntu-20.04
+    concurrency:
+      group: ${{ github.workflow }}-${{ matrix.run_phase }}-${{ github.ref }}
+      cancel-in-progress: true
     strategy:
       fail-fast: false
       matrix: