diff --git a/json-bytes-builder.cabal b/json-bytes-builder.cabal
--- a/json-bytes-builder.cabal
+++ b/json-bytes-builder.cabal
@@ -1,7 +1,7 @@
 name:
   json-bytes-builder
 version:
-  0.2
+  0.2.1
 synopsis:
   Direct-to-bytes JSON Builder
 description:
diff --git a/library/JSONBytesBuilder/Builder.hs b/library/JSONBytesBuilder/Builder.hs
--- a/library/JSONBytesBuilder/Builder.hs
+++ b/library/JSONBytesBuilder/Builder.hs
@@ -4,6 +4,7 @@
   null,
   boolean,
   number_int,
+  number_integer,
   number_double,
   number_scientific,
   string,
@@ -76,6 +77,11 @@
 number_int :: Int -> JSON
 number_int =
   JSON . inline A.intDec
+
+{-# INLINE number_integer #-}
+number_integer :: Integer -> JSON
+number_integer =
+  JSON . inline A.integerDec
 
 {-# INLINE number_double #-}
 number_double :: Double -> JSON