diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2a4f9ba..c0209cf 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -28,7 +28,7 @@ jobs:
           persist-credentials: false
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v8.2.0
+        uses: astral-sh/setup-uv@v8.3.0
         with:
           enable-cache: true
           python-version: ${{ matrix.python-version }}
@@ -73,7 +73,7 @@ jobs:
           persist-credentials: false
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v8.2.0
+        uses: astral-sh/setup-uv@v8.3.0
         with:
           enable-cache: true
           python-version: ${{ matrix.python-version }}
@@ -92,7 +92,7 @@ jobs:
       - uses: actions/checkout@v7
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v8.2.0
+        uses: astral-sh/setup-uv@v8.3.0
 
       - name: Check every version field agrees
         run: uv run --no-project python scripts/sync_version.py --check
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 47ecb8a..8537a6e 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -25,7 +25,7 @@ jobs:
           fetch-depth: 0 # need all tags to detect whether vX.Y.Z already exists
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v8.2.0
+        uses: astral-sh/setup-uv@v8.3.0
 
       - name: Create tag + GitHub release (idempotent)
         env: