diff --git a/quickstart-flink/pom.xml b/quickstart-flink/pom.xml
index 3ec991d..65fb24e 100644
--- a/quickstart-flink/pom.xml
+++ b/quickstart-flink/pom.xml
@@ -21,7 +21,7 @@
         <flink.version>1.13.0</flink.version>
         <scala.binary.version>2.12</scala.binary.version>
 
-        <log4j.version>2.13.2</log4j.version>
+        <log4j.version>2.16.0</log4j.version>
 
         <target.java.version>1.8</target.java.version>
         <maven.compiler.source>${target.java.version}</maven.compiler.source>