diff --git a/build-constraints.yaml b/build-constraints.yaml
index bab4d958..2d6d2285 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2484,7 +2484,7 @@ packages:
         - opentelemetry-lightstep
         - planb-token-introspection < 0 # #5445/closed
         - pointedlist
-        - unordered-intmap
+        - unordered-intmap < 0 # primitive 0.7.1.0 https://github.com/ethercrow/unordered-intmap/issues/2
         - word-trie
         - xdg-basedir
         - yi-rope