diff --git a/demobase/pom.xml b/demobase/pom.xml
index 6b5d45c..d17233c 100644
--- a/demobase/pom.xml
+++ b/demobase/pom.xml
@@ -27,7 +27,7 @@
     <dependency>
       <groupId>org.apache.logging.log4j</groupId>
       <artifactId>log4j-slf4j-impl</artifactId>
-      <version>2.22.1</version>
+      <version>2.23.1</version>
     </dependency>
     <dependency>
       <groupId>com.weicoder</groupId>
diff --git a/logging-webapp/pom.xml b/logging-webapp/pom.xml
index bb37a23..d4fe30d 100644
--- a/logging-webapp/pom.xml
+++ b/logging-webapp/pom.xml
@@ -13,7 +13,7 @@
   <packaging>war</packaging>
 
   <properties>
-    <log4j.version>2.22.1</log4j.version>
+    <log4j.version>2.23.1</log4j.version>
     <slf4j.version>1.7.25</slf4j.version>
   </properties>