diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index decc86e..88a799f 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -30,7 +30,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: astral-sh/setup-uv@v5
+      - uses: astral-sh/setup-uv@5a095e7a2014a4212f075830d4f7277575a9d098
         with:
           enable-cache: true
           python_version: "3.12"
@@ -44,7 +44,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: astral-sh/setup-uv@v5
+      - uses: astral-sh/setup-uv@5a095e7a2014a4212f075830d4f7277575a9d098
         with:
           enable-cache: true
 
@@ -87,7 +87,7 @@ jobs:
           version: "27.4"
           repo-token: ${{ secrets.GITHUB_TOKEN }}
 
-      - uses: astral-sh/setup-uv@v5
+      - uses: astral-sh/setup-uv@5a095e7a2014a4212f075830d4f7277575a9d098
         with:
           enable-cache: true
 
@@ -143,7 +143,7 @@ jobs:
           version: "27.4"
           repo-token: ${{ secrets.GITHUB_TOKEN }}
 
-      - uses: astral-sh/setup-uv@v5
+      - uses: astral-sh/setup-uv@5a095e7a2014a4212f075830d4f7277575a9d098
         with:
           enable-cache: true
 
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index e26fef0..8074e20 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -76,7 +76,7 @@ jobs:
           key: cargo-cache-${{ steps.rust-toolchain.outputs.cachekey }}-${{ hashFiles('Cargo.lock') }}
 
       - name: install uv
-        uses: astral-sh/setup-uv@v5
+        uses: astral-sh/setup-uv@5a095e7a2014a4212f075830d4f7277575a9d098
         with:
           enable-cache: true
           python-version: ${{ matrix.python-version }}