diff --git a/.github/workflows/deploy-docs.yml b/.github/workflows/deploy-docs.yml
index 691090fc..19f3edb5 100644
--- a/.github/workflows/deploy-docs.yml
+++ b/.github/workflows/deploy-docs.yml
@@ -23,6 +23,9 @@ jobs:
     permissions:
       contents: write
       packages: read
+    concurrency:
+      group: gh-pages-${{ github.ref }}
+      cancel-in-progress: true
 
     container:
       image: ghcr.io/cosmostat/sp_validation:develop