diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
index e8ab9f359..94a6418ea 100644
--- a/.github/workflows/ubuntu.yml
+++ b/.github/workflows/ubuntu.yml
@@ -10,7 +10,7 @@ jobs:
     strategy:
       matrix:
         python: [ 3.8, 3.9, "3.10", "3.11" ]
-        os:  [ ubuntu-20.04 ]
+        os:  [ ubuntu-22.04 ]
         compiler: [gcc, clang10]
         rust: [1.62.1]
     defaults:
@@ -59,15 +59,15 @@ jobs:
         run: |
           dpkg -S llvm-config
 
-      - name: Set LLVM_CONFIG on 20.04
-        if: matrix.os == 'ubuntu-20.04'
+      - name: Set LLVM_CONFIG on 22.04
+        if: matrix.os == 'ubuntu-22.04'
         run: |
             echo "LLVM_CONFIG=/usr/bin/llvm-config-10" >> $GITHUB_ENV
 
-      - name: Set LLVM_CONFIG on 18.04
-        if: matrix.os == 'ubuntu-18.04'
-        run: |
-            echo "LLVM_CONFIG=/usr/lib/llvm-9/bin/llvm-config" >> $GITHUB_ENV
+      # - name: Set LLVM_CONFIG on 18.04
+      #   if: matrix.os == 'ubuntu-18.04'
+      #   run: |
+      #       echo "LLVM_CONFIG=/usr/lib/llvm-9/bin/llvm-config" >> $GITHUB_ENV
 
       - name: Python version
         run: |