Updating some plugins
diff --git a/pom.xml b/pom.xml
index 7c480e9..45c9044 100644
--- a/pom.xml
+++ b/pom.xml
@@ -234,7 +234,7 @@
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-javadoc-plugin</artifactId>
-                    <version>2.9.1</version>
+                    <version>3.0.1</version>
                     <configuration>
                         <attach>true</attach>
                         <source>${jdk.version}</source>
@@ -304,7 +304,7 @@
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-dependency-plugin</artifactId>
-                    <version>2.10</version>
+                    <version>3.1.1</version>
                 </plugin>
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
@@ -334,7 +334,7 @@
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-plugin-plugin</artifactId>
-                    <version>3.2</version>
+                    <version>3.5.2</version>
                 </plugin>
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>