diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bebaf02..25c6e23 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -27,7 +27,7 @@ jobs:
         run: sudo apt-get update && sudo apt-get install -y pkg-config libfontconfig1-dev libfreetype-dev
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v7
+        uses: astral-sh/setup-uv@v8.1.0
 
       - name: Install Rust toolchain
         uses: dtolnay/rust-toolchain@stable
@@ -57,7 +57,7 @@ jobs:
         uses: actions/checkout@v6
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v7
+        uses: astral-sh/setup-uv@v8.1.0
 
       - name: Ruff check
         run: uvx ruff check python/
@@ -72,7 +72,7 @@ jobs:
         uses: actions/checkout@v6
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v7
+        uses: astral-sh/setup-uv@v8.1.0
 
       - name: Build docs (strict)
         run: uvx --with mkdocs-material mkdocs build --strict
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index a3c9e25..0241081 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -121,7 +121,7 @@ jobs:
           merge-multiple: true
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v7
+        uses: astral-sh/setup-uv@v8.1.0
 
       - name: Publish to PyPI
         run: uv publish dist/*
@@ -135,7 +135,7 @@ jobs:
         uses: actions/checkout@v6
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v7
+        uses: astral-sh/setup-uv@v8.1.0
 
       - name: Build docs
         run: uvx --with mkdocs-material mkdocs build --strict