diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 02d4d48..cb5bff5 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -144,6 +144,6 @@ jobs:
           pattern: wheels-*
           merge-multiple: true
       - name: Install uv
-        uses: astral-sh/setup-uv@v8
+        uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
       - name: Publish to PyPI
         run: uv publish wheels-*/*