diff --git a/CHANGELOG.md b/CHANGELOG.md
index eef97005..8f59fc90 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,11 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 * Support for stream partitioning in windows
 * Joins of data streams
 
+## [2.2.1] - 2021-12-16
+
+### Changed
+* Updated Log4J from version 2.15.0 to 2.16.0 due to [CVE-2021-45046](http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-45046).
+
 ## [2.2.0] - 2021-12-14
 
 ### Added
@@ -163,5 +168,6 @@ can be set with the program argument `--baseIRI`.
 [1.2.3]: https://github.com/RMLio/RMLStreamer/compare/v1.2.2...v1.2.3
 [2.0.0]: https://github.com/RMLio/RMLStreamer/compare/v1.2.3...v2.0.0  
 [2.1.0]: https://github.com/RMLio/RMLStreamer/compare/v2.0.0...v2.1.0  
-[2.1.1]: https://github.com/RMLio/RMLStreamer/compare/v2.1.0...v2.1.1  
-[2.2.0]: https://github.com/RMLio/RMLStreamer/compare/v2.1.1...v2.2.0  
+[2.1.1]: https://github.com/RMLio/RMLStreamer/compare/v2.1.0...v2.1.1
+[2.2.0]: https://github.com/RMLio/RMLStreamer/compare/v2.1.1...v2.2.0
+[2.2.1]: https://github.com/RMLio/RMLStreamer/compare/v2.2.0...v2.2.1
diff --git a/pom.xml b/pom.xml
index 4b9e8679..306a182a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -28,7 +28,7 @@ SOFTWARE.
 
     <groupId>io.rml</groupId>
     <artifactId>RMLStreamer</artifactId>
-    <version>2.2.0</version>
+    <version>2.2.1</version>
     <packaging>jar</packaging>
 
     <name>RMLStreamer</name>
@@ -38,7 +38,7 @@ SOFTWARE.
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <flink.version>1.14.0</flink.version>
         <slf4j.version>1.7.32</slf4j.version>
-        <log4j.version>2.15.0</log4j.version>
+        <log4j.version>2.16.0</log4j.version>
         <jena.version>4.3.1</jena.version>
         <kafka.version>2.4.1</kafka.version>