diff --git a/compilers.yaml b/compilers.yaml
index 59a766b..a02101d 100644
--- a/compilers.yaml
+++ b/compilers.yaml
@@ -98,6 +98,7 @@ compilers:
     - { image: clad, name: clad, args: trunk}
     - { image: clad, name: clad-trunk-clang-21.1.0, args: trunk-clang-21.1.0}
     - { image: miri, name: miri, command: build.sh, args: nightly }
+    - { image: micropython, name: micropython, command: build.sh, args: preview }
 
   ad_hoc:
     - { image: gcc, command: build.sh }