diff --git a/json-encoder.cabal b/json-encoder.cabal
--- a/json-encoder.cabal
+++ b/json-encoder.cabal
@@ -1,7 +1,7 @@
 name:
   json-encoder
 version:
-  0.1.7
+  0.1.8
 synopsis:
   A direct-to-bytes single-pass JSON encoder with a declarative DSL
 description:
@@ -57,4 +57,5 @@
     contravariant >= 1.3 && < 2,
     semigroups >= 0.18 && < 0.19,
     -- 
-    base-prelude >= 0.1.21 && < 2
+    base-prelude >= 0.1.21 && < 2,
+    base < 5