diff --git a/.github/actions/setup-pdm/action.yml b/.github/actions/setup-pdm/action.yml
index 82b8c07..235cc77 100644
--- a/.github/actions/setup-pdm/action.yml
+++ b/.github/actions/setup-pdm/action.yml
@@ -8,7 +8,7 @@ runs:
     - name: Setup PDM
       uses: pdm-project/setup-pdm@v4
       with:
-        version: "2.25.9"
+        version: "2.26.6"
         python-version: "3.13"
 
     - name: Cache PDM