diff --git a/.github/workflows/ci-cogent3-dev.yml b/.github/workflows/ci-cogent3-dev.yml
index a6a4ab8..321da47 100644
--- a/.github/workflows/ci-cogent3-dev.yml
+++ b/.github/workflows/ci-cogent3-dev.yml
@@ -17,7 +17,7 @@ jobs:
           fetch-depth: 0
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v7
+        uses: astral-sh/setup-uv@v8.1.0
         with:
           enable-cache: true
           python-version: "3.12"
diff --git a/.github/workflows/linters.yml b/.github/workflows/linters.yml
index 9ac1d1e..45e927a 100644
--- a/.github/workflows/linters.yml
+++ b/.github/workflows/linters.yml
@@ -13,7 +13,7 @@ jobs:
       - uses: actions/checkout@v6
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v7
+        uses: astral-sh/setup-uv@v8.1.0
         with:
           enable-cache: true
           cache-dependency-glob: "pyproject.toml"
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index ea32cd7..f42b1bf 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -15,7 +15,7 @@ jobs:
           fetch-depth: 0
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v7
+        uses: astral-sh/setup-uv@v8.1.0
         with:
           enable-cache: true
           cache-dependency-glob: "pyproject.toml"
@@ -35,7 +35,7 @@ jobs:
           fetch-depth: 0
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v7
+        uses: astral-sh/setup-uv@v8.1.0
 
       - name: Build sdist and wheel
         run: uv build
diff --git a/.github/workflows/testing_develop.yml b/.github/workflows/testing_develop.yml
index e3644c8..38efc21 100644
--- a/.github/workflows/testing_develop.yml
+++ b/.github/workflows/testing_develop.yml
@@ -24,7 +24,7 @@ jobs:
           fetch-depth: 0
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v7
+        uses: astral-sh/setup-uv@v8.1.0
         with:
           enable-cache: true
           cache-dependency-glob: "pyproject.toml"