diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,14 @@
 
 `hslua-objectorientation` uses [PVP Versioning][].
 
+## hslua-objectorientation-2.2.1
+
+Released 2022-06-19.
+
+-   Require hslua-core-2.2.1.
+
+-   Require hslua-marshalling-2.2.1.
+
 ## hslua-objectorientation-2.2.0.1
 
 Released 2022-05-20.
diff --git a/LICENSE b/LICENSE
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright © 1994-2020 Lua.org, PUC-Rio.
+Copyright © 1994-2022 Lua.org, PUC-Rio.
 Copyright © 2007-2012 Gracjan Polak
 Copyright © 2012-2015 Ömer Sinan Ağacan
 Copyright © 2016-2022 Albert Krewinkel
diff --git a/hslua-objectorientation.cabal b/hslua-objectorientation.cabal
--- a/hslua-objectorientation.cabal
+++ b/hslua-objectorientation.cabal
@@ -1,6 +1,6 @@
 cabal-version:       2.2
 name:                hslua-objectorientation
-version:             2.2.0.1
+version:             2.2.1
 synopsis:            Object orientation tools for HsLua
 description:         Expose Haskell objects to Lua with an object oriented
                      interface.
@@ -21,8 +21,8 @@
                    , GHC == 8.6.5
                    , GHC == 8.8.4
                    , GHC == 8.10.7
-                   , GHC == 9.0.1
-                   , GHC == 9.2.1
+                   , GHC == 9.0.2
+                   , GHC == 9.2.3
 
 source-repository head
   type:                git
@@ -35,8 +35,8 @@
                      , bytestring        >= 0.10.2 && < 0.12
                      , containers        >= 0.5.9  && < 0.7
                      , exceptions        >= 0.8    && < 0.11
-                     , hslua-core        >= 2.2    && < 2.3
-                     , hslua-marshalling >= 2.2    && < 2.3
+                     , hslua-core        >= 2.2.1  && < 2.3
+                     , hslua-marshalling >= 2.2.1  && < 2.3
                      , mtl               >= 2.2    && < 2.4
                      , text              >= 1.2    && < 2.1
   ghc-options:         -Wall