Update dependency versions

Author: Javen

pom.xml

@@ -39,22 +39,22 @@
 		<dependency>
 			<groupId>com.google.code.gson</groupId>
 			<artifactId>gson</artifactId>
-			<version>2.2.4</version>
+			<version>2.3</version>
 		</dependency>
 		<dependency>
 			<groupId>org.slf4j</groupId>
 			<artifactId>slf4j-api</artifactId>
-			<version>1.7.5</version>
+			<version>1.7.7</version>
 		</dependency>
 		<dependency>
 			<groupId>org.slf4j</groupId>
 			<artifactId>slf4j-log4j12</artifactId>
-			<version>1.7.5</version>
+			<version>1.7.7</version>
 		</dependency>
 		<dependency>
 			<groupId>log4j</groupId>
 			<artifactId>log4j</artifactId>
-			<version>1.2.16</version>
+			<version>1.2.17</version>
 		</dependency>
 		<dependency>
 			<groupId>junit</groupId>
@@ -71,7 +71,7 @@
 		<dependency>
 			<groupId>com.squareup.okhttp</groupId>
 			<artifactId>mockwebserver</artifactId>
-			<version>1.5.4</version>
+			<version>2.0.0</version>
 			<scope>test</scope>
 		</dependency>
 	</dependencies>
@@ -101,7 +101,7 @@
 					<dependency>
 						<groupId>org.apache.maven.plugins</groupId>
 						<artifactId>maven-scm-plugin</artifactId>
-						<version>1.8.1</version>
+						<version>1.9.1</version>
 					</dependency>
 				</dependencies>
 				<configuration>