diff --git a/build.gradle b/build.gradle
index ad994da..6e4074a 100644
--- a/build.gradle
+++ b/build.gradle
@@ -28,7 +28,7 @@ repositories {
 }
 
 def apachePOIVersion = '5.2.3'
-def log4jVersion = '2.20.0'
+def log4jVersion = '2.21.0'
 
 dependencies {
     implementation('commons-beanutils:commons-beanutils:1.9.4')