diff --git a/build-constraints.yaml b/build-constraints.yaml
index ad656e0c..7e135510 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2247,7 +2247,7 @@ packages:
 
     "Tebello Thejane <zyxoas+stackage@gmail.com> @tebello-thejane":
         - bitx-bitcoin
-        
+
     "Andrew Lelechenko <andrew.lelechenko@gmail.com> @Bodigrim":
         - exp-pairs
 
@@ -2287,8 +2287,6 @@ packages:
         # https://github.com/fpco/stackage/issues/1597
         - tagsoup < 0.14
 
-        # https://github.com/fpco/stackage/issues/1627
-        - singletons < 2.2
 # end of packages