diff --git a/.github/workflows/cli.yml b/.github/workflows/cli.yml
index 7684e40..a022952 100644
--- a/.github/workflows/cli.yml
+++ b/.github/workflows/cli.yml
@@ -11,6 +11,10 @@ on:
       - pyproject.toml
       - poetry.lock
 
+concurrency:
+  group: environment-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   mdx:
     strategy:
diff --git a/.github/workflows/e2e.yml b/.github/workflows/e2e.yml
index e455c20..edf1c5a 100644
--- a/.github/workflows/e2e.yml
+++ b/.github/workflows/e2e.yml
@@ -13,6 +13,10 @@ on:
       - staging
       - trying
 
+concurrency:
+  group: environment-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   e2e:
     strategy: