diff --git a/README.md b/README.md
index 45610ba..a5caba5 100644
--- a/README.md
+++ b/README.md
@@ -106,7 +106,7 @@ Wikibase Internal Serialization has been written by [Jeroen De Dauw]
 
 ## Release notes
 
-### 2.2.0 (dev)
+### 2.2.0 (2016-03-03)
 
 * `DeserializerFactory` constructor now optionally takes a `DispatchableDeserializer` as third argument
 
diff --git a/mediawiki-extension.json b/mediawiki-extension.json
index 1a2ae39..c52097e 100644
--- a/mediawiki-extension.json
+++ b/mediawiki-extension.json
@@ -5,7 +5,7 @@
 	],
 	"url": "https://github.com/wmde/WikibaseInternalSerialization",
 	"description": "Serializers and deserializers for the data access layer of Wikibase Repository",
-	"version": "2.1.0",
+	"version": "2.2.0",
 	"license-name": "GPL-2.0+",
 	"type": "wikibase",
 	"manifest_version": 1