diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index b65f8973..5c92493d 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -22,6 +22,10 @@ jobs:
 
     steps:
     - uses: actions/checkout@v1
+    - uses: actions/setup-java@v1
+      with:
+        java-version: '8'
+        architecture: x64
     - name: Build
       run: ./gradlew mac
 
@@ -30,5 +34,9 @@ jobs:
 
     steps:
     - uses: actions/checkout@v1
+    - uses: actions/setup-java@v1
+      with:
+        java-version: '8'
+        architecture: x64
     - name: Build
       run: ./gradlew win-installer