diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index b3264652..5c03f961 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -96,6 +96,13 @@ jobs:
           restore-keys: |
             Library-
 
+      - name: Get current version
+        run: |
+          # ProjectSettings.assetから現在のバージョンを取得
+          current_version=$(grep -m1 'bundleVersion:' ProjectSettings/ProjectSettings.asset | awk '{print $2}')
+          echo "現在のプロジェクトバージョン: $current_version"
+          echo "current_version=${current_version}" >> $GITHUB_OUTPUT
+
       - name: Run the build for StandaloneWindows64
         uses: game-ci/unity-builder@v4.3.0
         env:
@@ -107,7 +114,7 @@ jobs:
           unityVersion: '6000.0.31f1'
           buildName: 'uDesktopMascot'
           versioning: Custom
-          version: ${{ steps.vars.outputs.current_version }}
+          version: ${{ needs.check-branch.outputs.current_version }}
 
       - name: Change build folder name
         run: |
@@ -118,7 +125,7 @@ jobs:
       - name: Push version file
         run: |
           cd build
-          echo "#define MyAppVersion \"${{ steps.vars.outputs.current_version }}\"" > setup.txt
+          echo "#define MyAppVersion \"${{ needs.check-branch.outputs.current_version }}\"" > setup.txt
           echo "setup.txt の内容: $(cat setup.txt)"
           cd ..
           git config --global user.name "github-actions"