diff --git a/agent-service/pom.xml b/agent-service/pom.xml
index 25493ff..98d8d3d 100644
--- a/agent-service/pom.xml
+++ b/agent-service/pom.xml
@@ -35,7 +35,7 @@
         <dependency>
             <groupId>org.json</groupId>
             <artifactId>json</artifactId>
-            <version>20160212</version>
+            <version>20180130</version>
         </dependency>
         <dependency>
             <groupId>org.apache.commons</groupId>
@@ -81,14 +81,14 @@
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>
             <artifactId>httpclient</artifactId>
-            <version>4.5.6</version>
+            <version>4.5.13</version>
         </dependency>
 
 
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>
-            <version>1.2.3</version>
+            <version>1.2.7</version>
         </dependency>
 
         <dependency>