diff --git a/build-constraints.yaml b/build-constraints.yaml
index dc7d3217..228ce139 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -8080,7 +8080,7 @@ packages:
         - cabal-install-parsers < 0.6.3
 
         # https://github.com/commercialhaskell/stackage/issues/7787
-        - QuickCheck < 2.16
+        - QuickCheck < 2.16 # for servant
 
         # https://github.com/commercialhaskell/stackage/issues/7784
         - hslua < 2.4.0