diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index a0b1a11..fec93cb 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -29,6 +29,7 @@ jobs:
           - { os: 'focal', tag: 'gcc-8',  extras: 'g++-8' }
           - { os: 'focal', tag: 'gcc-7',  extras: 'g++-7' }
 
+          - { os: 'jammy', tag: 'clang-20',  extras: 'llvm-20' }
           - { os: 'jammy', tag: 'clang-19',  extras: 'llvm-19' }
           - { os: 'jammy', tag: 'clang-18',  extras: 'llvm-18' }
           - { os: 'jammy', tag: 'clang-17',  extras: 'llvm-17' }