diff --git a/starter-package/creating-test-doubles-with-mockito/creating-spies-with-mockito/pom.xml b/starter-package/creating-test-doubles-with-mockito/creating-spies-with-mockito/pom.xml
index a91a80d9..3693be1b 100644
--- a/starter-package/creating-test-doubles-with-mockito/creating-spies-with-mockito/pom.xml
+++ b/starter-package/creating-test-doubles-with-mockito/creating-spies-with-mockito/pom.xml
@@ -10,7 +10,7 @@
 
     <properties>
         <jdk.version>1.8</jdk.version>
-        <log4j.version>2.6.2</log4j.version>
+        <log4j.version>2.16.0</log4j.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>