diff --git a/pom.xml b/pom.xml
index 9ff0ee4ae4..55e7b7cc36 100644
--- a/pom.xml
+++ b/pom.xml
@@ -68,7 +68,7 @@
     <maven.compiler.source>1.7</maven.compiler.source>
     <maven.compiler.target>1.7</maven.compiler.target>
     <httpcore.version>5.0-beta6</httpcore.version>
-    <log4j.version>2.9.1</log4j.version>
+    <log4j.version>2.15.0</log4j.version>
     <commons-codec.version>1.11</commons-codec.version>
     <conscrypt.version>1.4.1</conscrypt.version>
     <ehcache.version>3.4.0</ehcache.version>