diff --git a/.github/workflows/setup.yml b/.github/workflows/setup.yml
index fc4934946..e66d9fa11 100644
--- a/.github/workflows/setup.yml
+++ b/.github/workflows/setup.yml
@@ -12,7 +12,7 @@ jobs:
         uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6
         with:
           python-version: 3.14
-      - uses: astral-sh/setup-uv@v7.2.1
+      - uses: astral-sh/setup-uv@803947b9bd8e9f986429fa0c5a41c367cd732b41 # v7.2.1
       - name: Install Gammu
         run: |
           sudo apt-get update
@@ -54,7 +54,7 @@ jobs:
         run: |
           C:/msys64/usr/bin/wget.exe -O gammu-setup.exe https://dl.cihar.com/gammu/releases/windows/Gammu-1.41.0-Windows.exe
           ./gammu-setup.exe /S /D=C:/Gammu
-      - uses: astral-sh/setup-uv@v7.2.1
+      - uses: astral-sh/setup-uv@803947b9bd8e9f986429fa0c5a41c367cd732b41 # v7.2.1
       - name: build
         run: uv build --wheel
       - name: Store the binary wheel
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 8f750c679..c8fbf41b9 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -24,7 +24,7 @@ jobs:
         uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6
         with:
           python-version: ${{ matrix.python-version }}
-      - uses: astral-sh/setup-uv@v7.2.1
+      - uses: astral-sh/setup-uv@803947b9bd8e9f986429fa0c5a41c367cd732b41 # v7.2.1
       - name: Install gammu
         if: ${{ matrix.os == 'ubuntu-latest' }}
         run: |