Fixed security alerts (#71)

Author: JeffInChrist

pom.xml

@@ -13,10 +13,10 @@
     <java.version>11</java.version>
     <maven.compiler.source>${java.version}</maven.compiler.source>
     <maven.compiler.target>${java.version}</maven.compiler.target>
-    <jackson.version>2.9.8</jackson.version>
+    <jackson.version>2.9.9</jackson.version>
     <apache.commons-lang.version>3.8.1</apache.commons-lang.version>
     <apache.commons-collections.version>4.2</apache.commons-collections.version>
-    <apache.commons-io.version>2.6</apache.commons-io.version>
+    <apache.commons-io.version>2.7</apache.commons-io.version>
     <remark.version>1.1.0</remark.version>
   </properties>
 
@@ -132,7 +132,7 @@
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>4.12</version>
+      <version>4.13.1</version>
       <scope>test</scope>
     </dependency>
     <dependency>
@@ -150,7 +150,7 @@
   </dependencies>
 
   <repositories>
-     <repository>
+    <repository>
       <id>jcenter</id>
       <name>jcenter</name>
       <url>https://jcenter.bintray.com</url>