diff --git a/cli/pom.xml b/cli/pom.xml
index 1740a625..8e90248d 100644
--- a/cli/pom.xml
+++ b/cli/pom.xml
@@ -26,7 +26,7 @@
     <properties>
         <scopt.version>3.7.1</scopt.version>
         <slf4j.version>1.7.7</slf4j.version>
-        <log4j.version>2.1</log4j.version>
+        <log4j.version>2.13.3</log4j.version>
         <nailgun.version>0.9.1</nailgun.version>
     </properties>
 
diff --git a/pom.xml b/pom.xml
index 9f8f2b07..c82fc00c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -67,7 +67,7 @@
         <json-schema-validator.version>2.1.7</json-schema-validator.version>
         <scala-logging.version>3.9.0</scala-logging.version>
         <slf4j.version>1.7.7</slf4j.version>
-        <log4j.version>2.1</log4j.version>
+        <log4j.version>2.13.3</log4j.version>
         <http.delegation.version>5.0.0</http.delegation.version>
     </properties>