diff --git a/es5-persistence/build.gradle b/es5-persistence/build.gradle
index 6a34487e14..bbf1b48968 100644
--- a/es5-persistence/build.gradle
+++ b/es5-persistence/build.gradle
@@ -4,8 +4,8 @@ dependencies {
 	compile 'com.google.inject:guice:3.0'
 
 	//ES5 Dependency
-	compile group: 'org.apache.logging.log4j', name: 'log4j-api', version: '2.8.2'
-	compile group: 'org.apache.logging.log4j', name: 'log4j-core', version: '2.8.2'
+	compile group: 'org.apache.logging.log4j', name: 'log4j-api', version: '2.9.1'
+	compile group: 'org.apache.logging.log4j', name: 'log4j-core', version: '2.9.1'
 
 	compile 'org.elasticsearch:elasticsearch:5.+'
 	compile 'org.elasticsearch.client:transport:5.+'