diff --git a/.forgejo/workflows/test.yaml b/.forgejo/workflows/test.yaml
index 8e99479..d4cff98 100644
--- a/.forgejo/workflows/test.yaml
+++ b/.forgejo/workflows/test.yaml
@@ -2,5 +2,9 @@ on: [push]
 jobs:
   test:
     runs-on: docker
+    container:
+      image: peaceiris/mdbook
     steps:
+      - run: mdbook build
+        working-directory: ./docs
       - run: echo test successful