diff --git a/.github/workflows/phono3py-pytest-windows.yml b/.github/workflows/phono3py-pytest-windows.yml
index e3101e96..c7df9a09 100644
--- a/.github/workflows/phono3py-pytest-windows.yml
+++ b/.github/workflows/phono3py-pytest-windows.yml
@@ -14,6 +14,9 @@ jobs:
 
     steps:
     - uses: actions/checkout@v4
+    - name: Install phonopy
+      run: |
+        pip install git+https://github.com/phonopy/phonopy@develop
     - name: Install phono3py
       run: |
         pip install -e . -v