diff --git a/build-constraints.yaml b/build-constraints.yaml
index 5a158eb2..074205d3 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -5110,6 +5110,9 @@ packages:
       # https://github.com/commercialhaskell/stackage/issues/5849
       - cryptonite < 0.28
 
+      # https://github.com/commercialhaskell/stackage/issues/5851
+      - vector < 0.12.2
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of