diff --git a/enummapset.cabal b/enummapset.cabal
index 53cb03a..88f7474 100644
--- a/enummapset.cabal
+++ b/enummapset.cabal
@@ -46,7 +46,7 @@ Library
     base >= 4.6 && < 5,
     aeson,
     containers >= 0.5.11 && < 0.7,
-    deepseq >= 1.2 && < 1.5
+    deepseq >= 1.2 && < 1.6
 
   if impl(ghc < 8.0)
     build-depends: semigroups >=0.1 && <1.0