diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 65ec30886..48c3d0459 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -295,9 +295,11 @@ jobs:
         # Experimental languages (these are allowed to fail)
         - SWIGLANG: mzscheme
           CPPSTD: c++17
+          GCC: 11
           continue-on-error: true
         - SWIGLANG: ocaml
           CPPSTD: c++17
+          GCC: 11
           continue-on-error: true
           os: ubuntu-18.04 # ocaml-4.08 in ubuntu-20.04 not yet working
       # Run all of them, as opposed to aborting when one fails