diff --git a/.github/workflows/mdoc.yml b/.github/workflows/mdoc.yml
index 1479567b..a50eae04 100644
--- a/.github/workflows/mdoc.yml
+++ b/.github/workflows/mdoc.yml
@@ -32,7 +32,9 @@ jobs:
       - uses: actions/checkout@v2
         with:
           fetch-depth: 0
-      - uses: olafurpg/setup-scala@v10
+      - uses: olafurpg/setup-scala@v14
+        with:
+          java-version: graalvm-ce-java11@20.3.2
       - uses: olafurpg/setup-gpg@v3
       - name: Run mdoc
         run: sbt 'docs/mdoc'