diff --git a/build-constraints.yaml b/build-constraints.yaml
index 305c0572..bdac2a64 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -5302,6 +5302,7 @@ skipped-tests:
     - integer-roots  # smallcheck, https://github.com/commercialhaskell/stackage/issues/5424
     - xlsx # smallcheck, https://github.com/commercialhaskell/stackage/issues/5576
     - registry # #5302/closed
+    - hashtables # hashable, mwc-random https://github.com/commercialhaskell/stackage/issues/5635
 
     # Blocked due to tests failing to compile for GHC 8.6
     - async-refresh