diff --git a/.github/workflows/docbot.yml b/.github/workflows/docbot.yml
index 887c8c5942..fc79bb4cfe 100644
--- a/.github/workflows/docbot.yml
+++ b/.github/workflows/docbot.yml
@@ -3,6 +3,10 @@ on:
   pull_request_target:
     types: [opened, edited]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   docbot:
     runs-on: ubuntu-20.04
diff --git a/.github/workflows/semantic-pull-request.yml b/.github/workflows/semantic-pull-request.yml
index a8fd6d05f4..3d58f3538e 100644
--- a/.github/workflows/semantic-pull-request.yml
+++ b/.github/workflows/semantic-pull-request.yml
@@ -7,6 +7,10 @@ on:
       - reopened
       - edited
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   check:
     runs-on: ubuntu-20.04