diff --git a/.github/workflows/cflite.yml b/.github/workflows/cflite.yml
index 5d3aa1e6f1..dc75831586 100644
--- a/.github/workflows/cflite.yml
+++ b/.github/workflows/cflite.yml
@@ -1,10 +1,18 @@
 name: ClusterFuzzLite PR fuzzing
+
 on:
   workflow_dispatch:
   pull_request:
     paths:
       - '**'
+
+# cancel any previous runs on the same PR
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
 permissions: read-all
+
 jobs:
   PR:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/common.yml b/.github/workflows/common.yml
index 60ec8231fa..54ff2c22fa 100644
--- a/.github/workflows/common.yml
+++ b/.github/workflows/common.yml
@@ -6,6 +6,11 @@ on:
   schedule:
     - cron: '14 23 * * *'  # every day @ 23:14
 
+# cancel any previous runs on the same PR
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   crypto_build:
     name: Crypto library
diff --git a/.github/workflows/core.yml b/.github/workflows/core.yml
index 4c4509c33f..12ce4dd884 100644
--- a/.github/workflows/core.yml
+++ b/.github/workflows/core.yml
@@ -11,6 +11,11 @@ on:
   schedule:
     - cron: '15 23 * * *'  # every day @ 23:15
 
+# cancel any previous runs on the same PR
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
 permissions:
   id-token: write       # for fetching the OIDC token
   contents: read        # for actions/checkout
diff --git a/.github/workflows/legacy.yml b/.github/workflows/legacy.yml
index 4a2a1c3f18..31e9a33506 100644
--- a/.github/workflows/legacy.yml
+++ b/.github/workflows/legacy.yml
@@ -6,6 +6,11 @@ on:
   schedule:
     - cron: '35 22 * * *'  # every day @ 22:35
 
+# cancel any previous runs on the same PR
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
 permissions:
   id-token: write       # for fetching the OIDC token
   contents: read        # for actions/checkout
diff --git a/.github/workflows/prebuild.yml b/.github/workflows/prebuild.yml
index 76df94bef7..4cee594600 100644
--- a/.github/workflows/prebuild.yml
+++ b/.github/workflows/prebuild.yml
@@ -6,6 +6,11 @@ on:
   schedule:
     - cron: '13 23 * * *'  # every day @ 23:13
 
+# cancel any previous runs on the same PR
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
 env:
   CARGOLOCK_COMMENT: Looks like you changed `Cargo.lock`. Please make sure to review the dependencies and update [internal version list](https://www.notion.so/satoshilabs/Rust-dependencies-a9cc6e8dab934def8eb27896c001e6e2).