diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index c374856..9be3805 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -14,6 +14,8 @@ jobs:
 
     strategy:
       matrix:
+        unityVersion:
+          - 2022.3.42f1
         targetPlatform:
           - WebGL
 
@@ -29,7 +31,7 @@ jobs:
           UNITY_PASSWORD: ${{ secrets.UNITY_PASSWORD }}
         with:
           projectPath: ./Galagan/
-          unityVersion: auto
+          unityVersion: ${{ matrix.unityVersion }}
           targetPlatform: ${{ matrix.targetPlatform }}
 
       - name: Upload artifact