diff --git a/.github/workflows/update-header-pr.yml b/.github/workflows/update-header-pr.yml
index 67fc8e1..7d90798 100644
--- a/.github/workflows/update-header-pr.yml
+++ b/.github/workflows/update-header-pr.yml
@@ -22,7 +22,8 @@ jobs:
     - name: Install libraries
       run: |
         wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
-        sudo echo "deb http://apt.llvm.org/unstable/ llvm-toolchain-15 main" > sudo tee -a "/etc/apt/sources.list.d/llvm.list"
+        sudo echo "deb http://apt.llvm.org/jammy/ llvm-toolchain-jammy main" | sudo tee -a "/etc/apt/sources.list"
+        sudo echo "deb http://apt.llvm.org/jammy/ llvm-toolchain-jammy-15 main" | sudo tee -a "/etc/apt/sources.list"
         sudo apt-get update
         sudo apt-get install -y clang-format-15