diff --git a/core/pom.xml b/core/pom.xml
old mode 100755
new mode 100644
index 174a18d..2e085e1
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -41,7 +41,7 @@
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>
             <artifactId>httpclient</artifactId>
-            <version>4.5</version>
+            <version>4.5.13</version>
         </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>