diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3d1750c..6f63117 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,17 +23,17 @@ jobs:
       - name: checkout
         uses: actions/checkout@v4
 
-      - name: Install uv
-        uses: astral-sh/setup-uv@v3
-        with:
-          version: ${{ env.VERSION_UV }}
-          enable-cache: true
-
       - name: set up python 3.9
         uses: actions/setup-python@v5
         with:
           python-version: "3.9"
 
+      - name: set up uv
+        uses: astral-sh/setup-uv@v3
+        with:
+          version: ${{ env.VERSION_UV }}
+          enable-cache: true
+
       - name: uv sync
         run: uv sync --frozen
 
@@ -77,19 +77,19 @@ jobs:
       - name: checkout
         uses: actions/checkout@v4
 
-      - name: setup uv
-        uses: astral-sh/setup-uv@v3
-        with:
-          version: ${{ env.VERSION_UV }}
-          enable-cache: true
-
       - name: set up python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
 
+      - name: set up uv
+        uses: astral-sh/setup-uv@v3
+        with:
+          version: ${{ env.VERSION_UV }}
+          enable-cache: true
+
       - name: uv sync
-        run: uv sync --frozen
+        run: uv sync
 
       - name: pytest
         run: uv run pytest