diff --git a/build-constraints.yaml b/build-constraints.yaml
index 269f3183..27408a8e 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4983,6 +4983,9 @@ packages:
       - hspec-megaparsec < 2.2.0
       - megaparsec-tests < 9.0.0
 
+      # https://github.com/commercialhaskell/stackage/issues/5633
+      - language-c < 0.9
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of