diff --git a/Data/Array/Base.hs b/Data/Array/Base.hs
--- a/Data/Array/Base.hs
+++ b/Data/Array/Base.hs
@@ -662,7 +662,7 @@
 
 -- bogus StablePtr value for initialising a UArray of StablePtr.
 nullStablePtr :: StablePtr a
-nullStablePtr = StablePtr (unsafeCoerce# 0#)
+nullStablePtr = StablePtr (unsafeCoerce# nullAddr#)
 
 instance IArray UArray Int8 where
     {-# INLINE bounds #-}
diff --git a/array.cabal b/array.cabal
--- a/array.cabal
+++ b/array.cabal
@@ -1,6 +1,6 @@
 cabal-version: >= 1.10
 name:          array
-version:       0.5.4.0
+version:       0.5.5.0
 
 -- NOTE: Don't forget to update ./changelog.md
 license:       BSD3
@@ -36,7 +36,7 @@
       Trustworthy,
       UnboxedTuples,
       UnliftedFFITypes
-  build-depends: base >= 4.9 && < 4.14
+  build-depends: base >= 4.9 && < 4.19
   ghc-options: -Wall
   exposed-modules:
       Data.Array
diff --git a/changelog.md b/changelog.md
--- a/changelog.md
+++ b/changelog.md
@@ -1,8 +1,12 @@
 # Changelog for [`array` package](http://hackage.haskell.org/package/array)
 
+## 0.5.5.0  *February 2022*
+
+  * Compatibility with GHC's new JavaScript backend.
+
 ## 0.5.4.0  *July 2019*
 
-* Add a `Read` instance for `UArray`
+  * Add a `Read` instance for `UArray`
 
 ## 0.5.3.0  *Oct 2018*