diff --git a/indexed-extras.cabal b/indexed-extras.cabal
index e96963f..c0d6549 100644
--- a/indexed-extras.cabal
+++ b/indexed-extras.cabal
@@ -30,7 +30,7 @@ Library
      indexed < 0.2,
      mtl < 2.3,
      pointed < 5.1,
-     bifunctors < 5.4
+     bifunctors < 5.6
   ghc-options:
      -Wall
   Extensions: