diff --git a/changelog.txt b/changelog.txt
index f1675cda..fd8cd16f 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -3,6 +3,12 @@ SIMPLE SPRING MEMCACHED CHANGELOG
 https://github.com/ragnor/simple-spring-memcached
 
 
+Changes in version 4.1.1 (2018-10-22)
+-------------------------------------
+
+* upgrade jackson to 2.8.11.2 due to security vulnerabilities 
+
+
 Changes in version 4.1.0 (2018-10-22)
 -------------------------------------
 
@@ -10,7 +16,6 @@ Changes in version 4.1.0 (2018-10-22)
 * allow dynamically adding cache to cache manager
 * fix issue with passing muteExceptions flag
 * ugrade xmemcached to 2.4.5
-* upgrade jackson to 2.8.11.1 due to security vulnerabilities 
 * clarify and improve javadocs
 * ensure compatibility with Spring 5.0.x and 5.1.x
 
diff --git a/pom.xml b/pom.xml
index 5f581dcf..de648166 100644
--- a/pom.xml
+++ b/pom.xml
@@ -85,7 +85,7 @@
 	<properties>
 		<spring.version>4.3.9.RELEASE</spring.version>
 		<aspectj.version>1.8.9</aspectj.version>
-		<jackson.version>2.8.9</jackson.version>
+		<jackson.version>2.8.11.2</jackson.version>
 		<spymemcached.version>2.12.3</spymemcached.version>
 		<xmemcached.version>2.4.5</xmemcached.version>
 		<elasticache.version>1.1.1</elasticache.version>