diff --git a/compound-types.cabal b/compound-types.cabal
--- a/compound-types.cabal
+++ b/compound-types.cabal
@@ -1,7 +1,7 @@
 name:
   compound-types
 version:
-  0.1.3.1
+  0.1.4
 category:
   Data, Types, Type System
 synopsis:
@@ -59,7 +59,7 @@
     CompoundTypes.Lazy
   build-depends:
     -- general:
-    base >= 4.7 && < 4.10
+    base >= 4.7 && < 5
 
 
 -- Not a benchmark really.