--- a/regex-applicative-text.cabal
+++ b/regex-applicative-text.cabal
@@ -29,7 +29,7 @@
       src
   ghc-options: -Wall
   build-depends:
-      base >= 4.3 && <4.10
+      base >= 4.3 && <5
     , regex-applicative >=0.3 && <0.4
     , text
   exposed-modules:
