diff --git a/build-constraints.yaml b/build-constraints.yaml
index 3704e82c..c179e805 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4513,7 +4513,6 @@ packages:
         - fuzzy-dates
 
     "Matthew Farkas-Dyck <strake888@gmail.com> @strake":
-        - dual < 0 # 0.1.1.1 compile fail deprecated (https://hackage.haskell.org/package/dual) and not ghc 9.6 ready
         - either-both < 0 # 0.1.1.1 compile fail deprecated (https://hackage.haskell.org/package/either-both) and not ghc 9.6 ready
         - filtrable
         - natural-induction