diff --git a/inflections.cabal b/inflections.cabal
index 7b4bb15..c8f3451 100644
--- a/inflections.cabal
+++ b/inflections.cabal
@@ -48,7 +48,7 @@ library
     ghc-options:      -Wall -Werror
   else
     ghc-options:      -O2 -Wall
-  build-depends:       base         >= 4.6   && < 4.10
+  build-depends:       base         >= 4.6   && < 5.0
                      , exceptions   >= 0.6   && < 0.9
                      , megaparsec   >= 5.0   && < 6.0
                      , text         >= 0.2   && < 1.3
@@ -61,7 +61,7 @@ test-suite test
   main-is: Spec.hs
   build-depends:       inflections
                      , QuickCheck   >= 2.7.6 && < 3.0
-                     , base         >= 4.2   && < 4.10
+                     , base         >= 4.6   && < 5.0
                      , hspec        >= 2.0   && < 3.0
                      , megaparsec   >= 5.0   && < 6.0
                      , text         >= 0.2   && < 1.3