diff --git a/.github/workflows/pull-request.yaml b/.github/workflows/pull-request.yaml
index abe7ebb..d630505 100644
--- a/.github/workflows/pull-request.yaml
+++ b/.github/workflows/pull-request.yaml
@@ -49,7 +49,7 @@ jobs:
     steps:
       - uses: actions/checkout@v7
       - name: Set up PDM
-        uses: pdm-project/setup-pdm@v3
+        uses: pdm-project/setup-pdm@v4
         with:
           python-version: "3.11"
       - name: Install dependencies