Upgrade dependencies and bump version number

pom.xml

@@ -20,37 +20,37 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>mamo</groupId>
 	<artifactId>VanillaVotifier</artifactId>
-	<version>4.2</version>
+	<version>4.2.1</version>
 	<dependencies>
 		<dependency>
 			<groupId>org.jetbrains</groupId>
-			<artifactId>annotations</artifactId>
-			<version>15.0</version>
+			<artifactId>annotations-java5</artifactId>
+			<version>19.0.0</version>
 		</dependency>
 		<dependency>
 			<groupId>org.apache.commons</groupId>
 			<artifactId>commons-lang3</artifactId>
-			<version>3.4</version>
+			<version>3.5</version>
 		</dependency>
 		<dependency>
 			<groupId>jline</groupId>
 			<artifactId>jline</artifactId>
-			<version>2.14.2</version>
+			<version>2.14.6</version>
 		</dependency>
 		<dependency>
 			<groupId>org.json</groupId>
 			<artifactId>json</artifactId>
-			<version>20160212</version>
+			<version>20190722</version>
 		</dependency>
 		<dependency>
 			<groupId>org.yaml</groupId>
 			<artifactId>snakeyaml</artifactId>
-			<version>1.17</version>
+			<version>1.23</version>
 		</dependency>
 		<dependency>
 			<groupId>org.bouncycastle</groupId>
 			<artifactId>bcprov-ext-jdk15on</artifactId>
-			<version>1.54</version>
+			<version>1.65</version>
 		</dependency>
 	</dependencies>
 	<properties>
@@ -78,7 +78,7 @@
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-jar-plugin</artifactId>
-				<version>3.0.2</version>
+				<version>3.2.0</version>
 				<configuration>
 					<archive>
 						<index>true</index>
@@ -94,7 +94,7 @@
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-shade-plugin</artifactId>
-				<version>2.4.3</version>
+				<version>3.2.3</version>
 				<executions>
 					<execution>
 						<phase>package</phase>