diff --git a/build-constraints.yaml b/build-constraints.yaml
index 01d658bc..95a666a3 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3497,6 +3497,10 @@ packages:
         # https://github.com/commercialhaskell/stackage/issues/3678
         - fsnotify < 0.3
         - filecache < 0.4
+
+        # https://github.com/ethercrow/unordered-intmap/issues/1
+        # https://github.com/fpco/store/issues/131
+        - primitive < 0.6.4
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of