diff --git a/.github/workflows/render.yml b/.github/workflows/render.yml
index a2d0d5888b8..bafa531dac4 100644
--- a/.github/workflows/render.yml
+++ b/.github/workflows/render.yml
@@ -39,3 +39,11 @@ jobs:
           branch: gh-pages # The branch to deploy to.
           folder: build # Synchronise with build.py -> build_directory
           single-commit: true # Delete existing files
+
+      - name: ♻️  Purge CDN cache
+        if: github.ref == 'refs/heads/main'
+        run: |
+          curl -H "Accept: application/json" -H "Fastly-Key: $FASTLY_TOKEN" -X POST "https://api.fastly.com/service/$FASTLY_SERVICE_ID/purge_all"
+        env:
+          FASTLY_TOKEN: ${{ secrets.FASTLY_TOKEN }}
+          FASTLY_SERVICE_ID: ${{ secrets.FASTLY_SERVICE_ID }}