diff --git a/build-constraints.yaml b/build-constraints.yaml
index 12540f065..e4d6ccb46 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3664,7 +3664,7 @@ packages:
         - mealy
         - numhask
         - numhask-array
-        - numhask-space
+        - numhask-space < 0.12 # https://github.com/commercialhaskell/stackage/issues/7630
         - perf
         - prettychart
         - web-rep