diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 18bace52..4b812276 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -9,6 +9,10 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
+    - name: Set up JDK 11
+      uses: actions/setup-java@v1.3.0
+      with:
+        java-version: 11
     - name: Build YAPFA
       run: |
         git submodule init