diff --git a/.github/workflows/pythonapp.yml b/.github/workflows/pythonapp.yml
index 445cb1b4..9a49046f 100644
--- a/.github/workflows/pythonapp.yml
+++ b/.github/workflows/pythonapp.yml
@@ -23,12 +23,12 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-22.04, macos-12, windows-2022]
+        os: [ubuntu-24.04, macos-12, windows-2022]
         python-version: ['3.9', '3.10', '3.11']
     env:
       TVM_VERSION_TAG: v0.17.0
       PYTORCH_VERSION: 2.2.0
-      LLVM_VERSION: 14
+      LLVM_VERSION: 18
 
     steps:
     - uses: actions/checkout@v4
@@ -95,7 +95,7 @@ jobs:
     - name: Install LLVM if Ubuntu
       if: ${{ startsWith(matrix.os, 'ubuntu')}}
       run: |
-        sudo apt install llvm-${{ env.LLVM_VERSION }}-dev
+        sudo apt install llvm-${{ env.LLVM_VERSION }}-dev libpolly-${{ env.LLVM_VERSION }}-dev
     - name: Install LLVM if Mac
       if: ${{ startsWith(matrix.os, 'macos')}}
       run: |