diff --git a/ch07-cache/pom.xml b/ch07-cache/pom.xml
index e06a42f..246c02f 100644
--- a/ch07-cache/pom.xml
+++ b/ch07-cache/pom.xml
@@ -46,7 +46,7 @@
         <dependency>
             <groupId>org.apache.logging.log4j</groupId>
             <artifactId>log4j-core</artifactId>
-            <version>2.13.0</version>
+            <version>2.17.1</version>
         </dependency>
         <dependency>
             <groupId>org.apache.logging.log4j</groupId>