diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
index 6ff99f5..2c43f65 100644
--- a/.github/workflows/ubuntu.yml
+++ b/.github/workflows/ubuntu.yml
@@ -12,8 +12,10 @@ jobs:
         compiler:
         - { cc: "gcc-9",    cxx: "g++-9" }
         - { cc: "gcc-10",   cxx: "g++-10" }
-        - { cc: "clang-9",  cxx: "clang++-9" }
+        - { cc: "gcc-11",   cxx: "g++-11" }
         - { cc: "clang-10", cxx: "clang++-10" }
+        - { cc: "clang-11", cxx: "clang++-11" }
+        - { cc: "clang-12", cxx: "clang++-12" }
 
     name: "${{matrix.compiler.cxx}}:${{matrix.build}}"
     steps: