diff --git a/pom.xml b/pom.xml
index 591c655..421c803 100644
--- a/pom.xml
+++ b/pom.xml
@@ -30,8 +30,8 @@ http://maven.apache.org/xsd/maven-4.0.0.xsd">
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>3.1</version>
                 <configuration>
-                    <source>1.5</source>
-                    <target>1.5</target>
+                    <source>1.7</source>
+                    <target>1.7</target>
                     <encoding>UTF-8</encoding>
                 </configuration>
             </plugin>
@@ -61,18 +61,18 @@ http://maven.apache.org/xsd/maven-4.0.0.xsd">
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.11</version>
+            <version>4.13.2</version>
             <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>jline</groupId>
             <artifactId>jline</artifactId>
-            <version>2.11</version>
+            <version>2.14.6</version>
         </dependency>
         <dependency>
             <groupId>org.antlr</groupId>
             <artifactId>antlr-runtime</artifactId>
-            <version>3.5</version>
+            <version>3.5.3</version>
             <type>jar</type>
         </dependency>
     </dependencies>