diff --git a/build-constraints.yaml b/build-constraints.yaml
index 83881414..4d6dcbe7 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3698,6 +3698,8 @@ packages:
         # https://github.com/commercialhaskell/stackage/issues/3955
         - megaparsec < 7.0.0
         - hspec-megaparsec < 2.0.0
+        - modern-uri < 0.3.0.0
+        - tibetan-utils < 0.1.1.9
 
 # end of packages