diff --git a/.forgejo/workflows/pull_request.yml b/.forgejo/workflows/pull_request.yml
index a308cc3..73e3420 100644
--- a/.forgejo/workflows/pull_request.yml
+++ b/.forgejo/workflows/pull_request.yml
@@ -4,11 +4,24 @@ jobs:
     runs-on: docker
     steps:
       - uses: actions/checkout@v4
+      - name: setup extension cache
+        id: extcache
+        uses: https://github.com/shivammathur/cache-extensions@v1
+        with:
+          extensions: intl,zip
+          key: cache-v1
+      - name: cache extensions
+        uses: actions/cache@v4
+        with:
+          path: ${{ steps.extcache.outputs.dir }}
+          key: ${{ steps.extcache.outputs.key }}
+          restore-keys: ${{ steps.extcache.outputs.key }}
       - name: setup php
         uses: https://github.com/shivammathur/setup-php@v2
         with:
           php-version: '8.4'
           tools: 'composer'
+          extensions: intl,zip
       - name: lint
         run: composer lint
       - name: test