diff --git a/CHANGELOG.md b/CHANGELOG.md
index 824c9fcc4bd80477389ab28811c1405f06e663cc..024147e145d798167983d5670f6fef1fe103cdd4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 2.3.3
+This release fixes a security vulnerability caused by the CORS implementation.
+Origins allowed for CORS can now be set in the configuration via
+`security.cors.origins`. (Reported by Rainer Rillke at Wikimedia)
+
+Additional changes:
+* Libraries have been upgraded to fix potential bugs
+
 ## 2.2.2
 This release fixes a security vulnerability caused by the CORS implementation.
 Origins allowed for CORS can now be set in the configuration via
diff --git a/pom.xml b/pom.xml
index 93969209a684b957419a5c6a354c7cec7ceb9041..fcf2ddfba2d69bf2880b44dc042e635762d30680 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>de.thm.arsnova</groupId>
 	<artifactId>arsnova-backend</artifactId>
-	<version>2.3.3-SNAPSHOT</version>
+	<version>2.3.3</version>
 	<packaging>war</packaging>
 
 	<properties>