diff --git a/pom.xml b/pom.xml
index 81103613..beb1ecfd 100644
--- a/pom.xml
+++ b/pom.xml
@@ -38,7 +38,7 @@
         <dependency>
             <groupId>com.google.guava</groupId>
             <artifactId>guava</artifactId>
-            <version>22.0</version>
+            <version>27.0.1-jre</version>
         </dependency>
         <dependency>
             <groupId>org.reflections</groupId>
@@ -47,8 +47,8 @@
         </dependency>
         <dependency>
             <groupId>org.ow2.asm</groupId>
-            <artifactId>asm-all</artifactId>
-            <version>[4.0.0,)</version>
+            <artifactId>asm</artifactId>
+            <version>[6.1.1,)</version>
         </dependency>
         <dependency>
             <groupId>junit</groupId>
@@ -90,7 +90,7 @@
                         </goals>
                         <configuration>
                             <sourceDirectory>src/main/antlr4/sat/</sourceDirectory>
-                           <outputDirectory>${project.basedir}/target/generated-sources/antlr4/de/dhbwstuttgart/sat/asp/parser/antlr</outputDirectory>
+                            <outputDirectory>${project.basedir}/target/generated-sources/antlr4/de/dhbwstuttgart/sat/asp/parser/antlr</outputDirectory>
                             <arguments>
                                 <argument>-package</argument>
                                 <argument>de.dhbwstuttgart.sat.asp.parser.antlr</argument>
@@ -119,12 +119,12 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-site-plugin</artifactId>
-                <version>3.3</version>
+                <version>3.7.1</version>
             </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-project-info-reports-plugin</artifactId>
-                <version>2.7</version>
+                <version>3.0.0</version>
             </plugin>
             <plugin>
                 <groupId>org.reficio</groupId>
@@ -144,7 +144,7 @@
                                     <id>org.reflections:reflections:0.9.11</id>
                                 </artifact>
                                 <artifact>
-                                    <id>com.google.guava:guava:22.0</id>
+                                    <id>com.google.guava:guava:27.0.1-jre</id>
                                 </artifact>
                                 <artifact>
                                     <id>javax.annotation:javax.annotation-api:1.3.1</id>
@@ -158,33 +158,36 @@
                 </executions>
             </plugin>
             <plugin>
-                <groupId>org.mortbay.jetty</groupId>
+                <groupId>org.eclipse.jetty</groupId>
                 <artifactId>jetty-maven-plugin</artifactId>
-                <version>8.1.5.v20120716</version>
+                <version>9.4.14.v20181114</version>
                 <configuration>
                     <scanIntervalSeconds>10</scanIntervalSeconds>
                     <webAppSourceDirectory>${basedir}/target/repository/</webAppSourceDirectory>
                     <webApp>
                         <contextPath>/site</contextPath>
                     </webApp>
+                    <supportedPackagings>
+                        <supportedPackaging>jar</supportedPackaging>
+                    </supportedPackagings>
                 </configuration>
             </plugin>
             <plugin>
                 <groupId>org.eclipse.tycho</groupId>
                 <artifactId>tycho-p2-repository-plugin</artifactId>
                 <version>${tycho.version}</version>
-                <!-- executions> <execution> <phase>package</phase> <goals> <goal>assemble-repository</goal>
-                    <goal>archive-repository</goal> </goals> </execution> </executions -->
-            </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.8.0</version>
-                <configuration>
-                    <source>9</source>
-                    <target>9</target>
-                </configuration>
+                <executions>
+                    <execution>
+                        <phase>p2:site</phase>
+                        <goals>
+                            <goal>archive-repository</goal>
+                        </goals>
+                    </execution>
+                </executions>
             </plugin>
+            <!-- plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.8.0</version> <configuration> <source>9</source> <target>9</target>
+                </configuration> </plugin -->
         </plugins>
     </build>
     <pluginRepositories>
@@ -192,6 +195,10 @@
             <id>reficio</id>
             <url>http://repo.reficio.org/maven/</url>
         </pluginRepository>
+        <pluginRepository>
+            <id>repo2_maven_org</id>
+            <url>http://repo2.maven.org/maven2</url>
+        </pluginRepository>
     </pluginRepositories>
     <repositories>
         <repository>