diff --git a/.forgejo/cascading-pr-end-to-end b/.forgejo/cascading-pr-end-to-end
new file mode 100755
index 0000000..3b2033e
--- /dev/null
+++ b/.forgejo/cascading-pr-end-to-end
@@ -0,0 +1,22 @@
+#!/bin/bash
+
+set -ex
+
+end_to_end=$1
+end_to_end_pr=$2
+setup_forgejo=$3
+setup_forgejo_pr=$4
+
+if test "$(jq --raw-output .state < $setup_forgejo_pr)" = "closed" ; then
+  echo "closed, do not update"
+  exit 0
+fi
+
+url=$(jq --raw-output .head.repo.html_url < $setup_forgejo_pr)
+test "$url" != null
+branch=$(jq --raw-output .head.ref < $setup_forgejo_pr)
+test "$branch" != null
+
+cd $end_to_end
+sed -i -e "s|https://code.forgejo.org/actions/setup-forgejo.*|$url@$branch|" .forgejo/workflows/actions.yml
+date > last-upgrade
diff --git a/.forgejo/workflows/cascade-end-to-end.yml b/.forgejo/workflows/cascade-end-to-end.yml
new file mode 100644
index 0000000..ad2d6fc
--- /dev/null
+++ b/.forgejo/workflows/cascade-end-to-end.yml
@@ -0,0 +1,24 @@
+# SPDX-License-Identifier: MIT
+on:
+  pull_request_target:
+    types:
+      - opened
+      - synchronize
+      - closed
+jobs:
+  cascade:
+    runs-on: docker
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/cascading-pr@v1
+        with:
+          origin-url: ${{ env.GITHUB_SERVER_URL }}
+          origin-repo: ${{ github.repository }}
+          origin-token: ${{ secrets.END_TO_END_CASCADING_PR_ORIGIN }}
+          origin-pr: ${{ github.event.pull_request.number }}
+          destination-url: ${{ env.GITHUB_SERVER_URL }}
+          destination-repo: actions/end-to-end
+          destination-branch: main
+          destination-token: ${{ secrets.END_TO_END_CASCADING_PR_DESTINATION }}
+          close-merge: true
+          update: .forgejo/cascading-pr-end-to-end