diff --git a/.github/workflows/python-app.yml b/.github/workflows/python-app.yml
index 1c03584..4bc40b6 100644
--- a/.github/workflows/python-app.yml
+++ b/.github/workflows/python-app.yml
@@ -45,9 +45,10 @@ jobs:
           python-version: ${{ matrix.python-version }}
 
       - name: Install uv
-        uses: astral-sh/setup-uv@37802adc94f370d6bfd71619e3f0bf239e1f3b78 # v7.6.0
+        uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
         with:
           python-version: ${{ matrix.python-version }}
+          prune-cache: true
 
       - name: Install the project
         run: uv sync --all-extras --dev
@@ -76,9 +77,10 @@ jobs:
           python-version: "3.10"
 
       - name: Install uv
-        uses: astral-sh/setup-uv@37802adc94f370d6bfd71619e3f0bf239e1f3b78 # v7.6.0
+        uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
         with:
           python-version: "3.14"
+          prune-cache: true
 
       - name: Install the project
         run: uv sync --all-extras --dev
diff --git a/tox.ini b/tox.ini
index 62beada..63bdc9e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -47,7 +47,7 @@ setenv =
     lint: FLAKE8_OPTS =
     lint: UV_OPTS = --quiet
 commands_pre =
-    uv pip install -e ".[dev]" {env:UV_OPTS}
+    uv sync --active --locked --all-extras {env:UV_OPTS}
 commands =
     ruff check  {env:RUFF_OPTS} --diff .
     autoflake {env:AUTOFLAKE_OPTS} --check .