diff --git a/pom.xml b/pom.xml
index fd7f66b..495e059 100644
--- a/pom.xml
+++ b/pom.xml
@@ -56,7 +56,7 @@
     <dependency>
       <groupId>com.google.code.gson</groupId>
       <artifactId>gson</artifactId>
-      <version>2.3.1</version>
+      <version>2.8.1</version>
     </dependency>
     <dependency>
       <groupId>org.hamcrest</groupId>
@@ -70,7 +70,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
-        <version>3.5.1</version>
+        <version>3.6.1</version>
         <configuration>
           <source>1.6</source>
           <target>1.6</target>
@@ -79,7 +79,7 @@
       <plugin>
         <groupId>org.jacoco</groupId>
         <artifactId>jacoco-maven-plugin</artifactId>
-        <version>0.7.6.201602180812</version>
+        <version>0.7.9</version>
         <executions>
           <execution>
             <id>prepare-agent</id>
@@ -92,12 +92,12 @@
       <plugin>
         <groupId>org.eluder.coveralls</groupId>
         <artifactId>coveralls-maven-plugin</artifactId>
-        <version>4.2.0</version>
+        <version>4.3.0</version>
       </plugin>
       <plugin>
         <groupId>org.sonatype.plugins</groupId>
         <artifactId>nexus-staging-maven-plugin</artifactId>
-        <version>1.6.7</version>
+        <version>1.6.8</version>
         <extensions>true</extensions>
         <configuration>
           <serverId>ossrh</serverId>
@@ -140,7 +140,7 @@
           <plugin>
             <groupId>org.apache.maven.plugins</groupId>
             <artifactId>maven-source-plugin</artifactId>
-            <version>3.0.0</version>
+            <version>3.0.1</version>
             <executions>
               <execution>
                 <id>attach-sources</id>
@@ -167,4 +167,4 @@
       </build>
     </profile>
   </profiles>
-</project>
\ No newline at end of file
+</project>