diff --git a/build-constraints.yaml b/build-constraints.yaml
index 7ae412ad..ab439ac9 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -5380,7 +5380,7 @@ packages:
         - indexed
         - infer-license
         - insert-ordered-containers
-        - inspection-testing
+        - inspection-testing < 0.6 # https://github.com/commercialhaskell/stackage/issues/7639
         - integer-conversion
         - integer-logarithms
         - interpolatedstring-perl6