upgrading dependencies. all tests passed locally

Author: abramsm

pom.xml

@@ -36,13 +36,13 @@
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>4.11</version>
+      <version>4.12</version>
       <scope>test</scope>
     </dependency>
     <dependency>
       <groupId>org.slf4j</groupId>
       <artifactId>slf4j-simple</artifactId>
-      <version>1.7.5</version>
+      <version>1.7.25</version>
       <scope>test</scope>
     </dependency>
     <dependency>
@@ -60,7 +60,7 @@
     <dependency>
       <groupId>commons-codec</groupId>
       <artifactId>commons-codec</artifactId>
-      <version>1.4</version>
+      <version>1.11</version>
       <scope>test</scope>
     </dependency>
     <dependency>
@@ -71,7 +71,7 @@
     <dependency>
       <groupId>org.apache.mahout</groupId>
       <artifactId>mahout-math</artifactId>
-      <version>0.9</version>
+      <version>0.13.0</version>
       <scope>test</scope>
     </dependency>
   </dependencies>
@@ -81,7 +81,7 @@
       <dependency>
         <groupId>com.google.guava</groupId>
         <artifactId>guava</artifactId>
-        <version>20.0</version>
+        <version>23.3-jre</version>
       </dependency>
     </dependencies>
   </dependencyManagement>