diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 93be966..8e9c74c 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -53,6 +53,11 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
+        if [ "${{ runner.os }}" = "Windows" ]; then
+          pip install "numpy<2.0.0"
+        else
+          pip install numpy
+        fi
         pip install torch
         pip install -e ".[test,lint]"
     - name: Lint with pysen