diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4067c61f2..0ba794798 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -40,6 +40,8 @@ jobs:
       - uses: actions/checkout@v3
       - name: Install Clang ${{ matrix.ver }}
         run: |
+          # Avoid `Conflicts: python3-lldb-x.y` between packages.
+          sudo apt purge -y python3-lldb-14
           wget https://apt.llvm.org/llvm.sh
           chmod +x ./llvm.sh
           sudo ./llvm.sh ${{ matrix.ver }}