diff --git a/.github/workflows/ci-actions.yaml b/.github/workflows/ci-actions.yaml
index cf9533b..f400812 100644
--- a/.github/workflows/ci-actions.yaml
+++ b/.github/workflows/ci-actions.yaml
@@ -9,6 +9,10 @@ on:
 permissions:
   contents: read # Needed to checkout the repository.
 
+concurrency:
+  group: "${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}"
+  cancel-in-progress: true
+
 jobs:
   zizmor:
     name: zizmor
diff --git a/.github/workflows/ci-code.yaml b/.github/workflows/ci-code.yaml
index f4ed23d..ecf0c8a 100644
--- a/.github/workflows/ci-code.yaml
+++ b/.github/workflows/ci-code.yaml
@@ -11,6 +11,10 @@ on:
 permissions:
   contents: read # Needed to checkout the repository.
 
+concurrency:
+  group: "${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}"
+  cancel-in-progress: true
+
 jobs:
   rustfmt:
     name: rustfmt
diff --git a/.github/workflows/codeql.yaml b/.github/workflows/codeql.yaml
index ca4f342..c4b1327 100644
--- a/.github/workflows/codeql.yaml
+++ b/.github/workflows/codeql.yaml
@@ -11,6 +11,10 @@ on:
 permissions:
   contents: read # Needed to checkout the repository.
 
+concurrency:
+  group: "${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}"
+  cancel-in-progress: true
+
 jobs:
   analyze:
     name: analyze (${{ matrix.language }})
diff --git a/.github/workflows/publish.yaml b/.github/workflows/publish.yaml
index a46fc16..adf9b4f 100644
--- a/.github/workflows/publish.yaml
+++ b/.github/workflows/publish.yaml
@@ -25,6 +25,10 @@ on:
 permissions:
   contents: read # Needed to checkout the repository.
 
+concurrency:
+  group: "${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}"
+  cancel-in-progress: true
+
 jobs:
   artifacts:
     name: artifacts