diff --git a/pom.xml b/pom.xml
index 0a8f850..c49c3b5 100644
--- a/pom.xml
+++ b/pom.xml
@@ -92,30 +92,30 @@
         <dependency>
             <groupId>commons-cli</groupId>
             <artifactId>commons-cli</artifactId>
-            <version>1.0</version>
+            <version>1.1</version>
         </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>
             <artifactId>httpclient</artifactId>
-            <version>4.1.1</version>
+            <version>4.5.13</version>
             <type>jar</type>
         </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>
             <artifactId>httpclient-cache</artifactId>
-            <version>4.1.1</version>
+            <version>4.5.13</version>
             <type>jar</type>
         </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>
             <artifactId>httpcore</artifactId>
-            <version>4.1.1</version>
+            <version>4.2</version>
             <type>jar</type>
         </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>
             <artifactId>httpcore-nio</artifactId>
-            <version>4.1.1</version>
+            <version>4.2</version>
             <type>jar</type>
         </dependency>
         <dependency>