diff --git a/codes/deadloop/pom.xml b/codes/deadloop/pom.xml
index 62f8f6f0..49f8beef 100644
--- a/codes/deadloop/pom.xml
+++ b/codes/deadloop/pom.xml
@@ -48,7 +48,7 @@
     <dependency>
       <groupId>org.apache.httpcomponents</groupId>
       <artifactId>httpclient</artifactId>
-      <version>4.5.9</version>
+      <version>4.5.13</version>
     </dependency>
     <dependency>
       <groupId>org.apache.httpcomponents</groupId>