diff --git a/.github/workflows/build-maven.yml b/.github/workflows/build-maven.yml
index 0da4ffc..3b2de6b 100644
--- a/.github/workflows/build-maven.yml
+++ b/.github/workflows/build-maven.yml
@@ -11,13 +11,13 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        java: [ 8, 11, 15 ]
+        java: [ 8, 11, 16 ]
     steps:
-      - uses: kamiazya/setup-graphviz@v1
       - uses: actions/checkout@v2
       - name: setup-jdk-${{ matrix.java }}
         uses: actions/setup-java@v1
         with:
+          distribution: 'adopt'
           java-version: ${{ matrix.java }}
       - name: build-jar
         run: mvn -B install