diff --git a/System/Win32/NLS.hsc b/System/Win32/NLS.hsc
--- a/System/Win32/NLS.hsc
+++ b/System/Win32/NLS.hsc
@@ -1,3 +1,4 @@
+{-# LANGUAGE CPP #-}
 {-# LANGUAGE Trustworthy #-}
 -----------------------------------------------------------------------------
 -- |
@@ -15,6 +16,9 @@
 
 module System.Win32.NLS  (
         module System.Win32.NLS,
+#if MIN_VERSION_base(4,15,0)
+        CodePage,
+#endif
 
         -- defined in System.Win32.Types
         LCID, LANGID, SortID, SubLANGID, PrimaryLANGID,
@@ -33,6 +37,9 @@
 import Data.IORef (modifyIORef, newIORef, readIORef)
 import Foreign
 import Foreign.C
+#if MIN_VERSION_base(4,15,0)
+import GHC.IO.Encoding.CodePage (CodePage)
+#endif
 import Text.Printf (printf)
 
 ##include "windows_cconv.h"
@@ -69,7 +76,9 @@
 
 -- ToDo: various enum functions.
 
+#if !MIN_VERSION_base(4,15,0)
 type CodePage = UINT
+#endif
 
 #{enum CodePage,
  , cP_ACP       = CP_ACP
diff --git a/Win32.cabal b/Win32.cabal
--- a/Win32.cabal
+++ b/Win32.cabal
@@ -1,5 +1,5 @@
 name:           Win32
-version:        2.11.0.0
+version:        2.11.1.0
 license:        BSD3
 license-file:   LICENSE
 author:         Alastair Reid, shelarcy, Tamar Christina
diff --git a/changelog.md b/changelog.md
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,11 @@
 # Changelog for [`Win32` package](http://hackage.haskell.org/package/Win32)
 
+## 2.11.1.0 February 2021
+
+* Win32 for GHC 9.2.x
+* Make `System.Win32.NLS` re-export `CodePage` from `GHC.IO.Encoding.CodePage`
+  in `base` when compiled with `base-4.15` or later.
+
 ## 2.11.0.0 January 2021
 
 * Remove function `mapFileBs`.