diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index 05fbc34..214a8aa 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -34,11 +34,13 @@ jobs:
         working-directory: raggr-frontend
     steps:
       - uses: actions/checkout@v4.2.2
+      # No `cache: yarn` here: setup-node requires yarn to already be on PATH
+      # for that, and the Node it installs doesn't ship one.
       - uses: actions/setup-node@v4.4.0
         with:
           node-version: '22.14.0'
-          cache: yarn
-          cache-dependency-path: raggr-frontend/yarn.lock
+      - name: Install Yarn (lockfile v1)
+        run: npm install --global yarn@1.22.22
       - name: Install locked frontend dependencies
         run: yarn install --frozen-lockfile
       - name: Renderer tests