diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index e145cd4..3798743 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -135,6 +135,8 @@ jobs:
       - name: Upload Release Assets
         run: |
           gh release upload ${{ github.ref_name }} dist/*
+        env:
+          GH_TOKEN: ${{ github.token }}
 
   Upload:
     needs: [Release]
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 67ca02f..3a35c9f 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -8,6 +8,9 @@ on:
       - main
   workflow_dispatch:
     inputs: {}
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.sha }}
+  cancel-in-progress: true    
 jobs:
   Lint:
     runs-on: ubuntu-latest
diff --git a/setup.py b/setup.py
index 3231b1c..cdb5e90 100644
--- a/setup.py
+++ b/setup.py
@@ -20,7 +20,7 @@
     maintainer="Cloud Custodian Project",
     maintainer_email="cloud-custodian@googlegroups.com",
     license="Apache-2.0",
-    version="0.6.3",
+    version="0.6.4",
     classifiers=[
         "Development Status :: 3 - Alpha",
         "Intended Audience :: Developers",