diff --git a/pom.xml b/pom.xml
index ae6137f..a5e89f6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -80,12 +80,12 @@
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-api</artifactId>
-            <version>1.7.7</version>
+            <version>1.7.12</version>
         </dependency>
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>
-            <version>1.0.7</version>
+            <version>1.1.3</version>
             <scope>test</scope>
         </dependency>
 
@@ -93,7 +93,7 @@
         <dependency>
             <groupId>commons-codec</groupId>
             <artifactId>commons-codec</artifactId>
-            <version>1.8</version>
+            <version>1.10</version>
         </dependency>
         <dependency>
             <groupId>commons-io</groupId>
@@ -105,7 +105,7 @@
         <dependency>
             <groupId>org.testng</groupId>
             <artifactId>testng</artifactId>
-            <version>6.8.1</version>
+            <version>6.9.6</version>
             <scope>test</scope>
         </dependency>