diff --git a/haddock.cabal b/haddock.cabal
index 37bb77c702d5ee62ea109aa5cfe9dc2be104454d..de11e7f7cf6bc799907eb6b0430a3209b00cb3e7 100644
--- a/haddock.cabal
+++ b/haddock.cabal
@@ -75,7 +75,7 @@ flag test
 executable haddock
   default-language:     Haskell2010
   build-depends:
-    base == 4.3.*,
+    base >= 4.3 && < 4.5,
     filepath,
     directory,
     pretty,
@@ -135,7 +135,7 @@ executable haddock
 library
   default-language:     Haskell2010
   build-depends:
-    base == 4.3.*,
+    base >= 4.3 && < 4.5,
     filepath,
     directory,
     pretty,