diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index cba4a55..9852562 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -24,7 +24,7 @@ jobs:
           python-version: "${{ matrix.python-version }}"
           architecture: x64
       - name: Set up uv
-        uses: astral-sh/setup-uv@v7
+        uses: astral-sh/setup-uv@37802adc94f370d6bfd71619e3f0bf239e1f3b78
 
       - name: Create virtualenv
         run: |