diff --git a/.github/workflows/abidiff.yaml b/.github/workflows/abidiff.yaml
index 215d63a..186e4fc 100644
--- a/.github/workflows/abidiff.yaml
+++ b/.github/workflows/abidiff.yaml
@@ -5,6 +5,10 @@ name: abidiff
 
 on: [push, pull_request]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref || github.run_id }}
+  cancel-in-progress: true
+
 defaults:
   run:
     shell: sh
diff --git a/.github/workflows/cifuzz.yaml b/.github/workflows/cifuzz.yaml
index 43e1de3..422b58d 100644
--- a/.github/workflows/cifuzz.yaml
+++ b/.github/workflows/cifuzz.yaml
@@ -1,5 +1,11 @@
 name: CIFuzz
+
 on: [pull_request]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   Fuzzing:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 47a12df..8935f81 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -20,6 +20,10 @@ on:
         type: boolean
         default: true
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref || github.run_id }}
+  cancel-in-progress: true
+
 env:
   GTEST_FILTER: ${{ github.event.inputs.gtest_filter || '*' }}