diff --git a/ch3-5/ch3-5-eureka-client/pom.xml b/ch3-5/ch3-5-eureka-client/pom.xml
index 011bd3c7..c4780796 100644
--- a/ch3-5/ch3-5-eureka-client/pom.xml
+++ b/ch3-5/ch3-5-eureka-client/pom.xml
@@ -28,7 +28,7 @@
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>
             <artifactId>httpclient</artifactId>
-            <version>4.5.5</version>
+            <version>4.5.13</version>
         </dependency>
         <dependency>
             <groupId>org.springframework.cloud</groupId>