diff --git a/build-constraints.yaml b/build-constraints.yaml
index c1394925..c867f594 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2352,6 +2352,9 @@ packages:
 
     "Greg Hurrell <greg@hurrell.net>":
         - docvim
+    
+    "Ashley Yakeley <ashley@semantic.org>":
+        - countable
 
     # If you stop maintaining a package you can move it here.
     # It will then be disabled if it starts causing problems.