diff --git a/pom.xml b/pom.xml
index 562cb4e..430a3a8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -11,13 +11,17 @@
     <description>Elasticsearch Plugin for Phone and SIP Analysis</description>
     <url>https://github.com/MyPureCloud/elasticsearch-phone</url>
     <properties>
+        <!-- Note: elasticsearch only grants permissions to specific versions 
+            of certain dependencies https://github.com/elastic/elasticsearch/blob/v5.1.1/core/src/main/resources/org/elasticsearch/bootstrap/test-framework.policy#L61 -->
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.build.sourceVersion>1.8</project.build.sourceVersion>
         <elasticsearch.version>5.1.1</elasticsearch.version>
         <lucene.version>6.3.0</lucene.version>
-        <junit.version>4.12</junit.version>
-        <randomizedtesting.version>2.5.3</randomizedtesting.version>
+        <junit.version>4.11</junit.version>
+        <randomizedtesting.version>2.4.0</randomizedtesting.version>
         <maven-compiler-plugin.version>3.1</maven-compiler-plugin.version>
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <maven.compiler.target>1.8</maven.compiler.target>
         <surefire.version>2.7.2</surefire.version>
         <elasticsearch.assembly.descriptor>${basedir}/src/main/assemblies/plugin.xml</elasticsearch.assembly.descriptor>
     </properties>
@@ -178,6 +182,17 @@
             </resource>
         </resources>
         <plugins>
+            <plugin>
+                <groupId>org.sonatype.plugins</groupId>
+                <artifactId>nexus-staging-maven-plugin</artifactId>
+                <version>1.6.3</version>
+                <extensions>true</extensions>
+                <configuration>
+                    <serverId>ossrh</serverId>
+                    <nexusUrl>https://oss.sonatype.org/</nexusUrl>
+                    <autoReleaseAfterClose>true</autoReleaseAfterClose>
+                </configuration>
+            </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-javadoc-plugin</artifactId>
@@ -194,19 +209,14 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
-                <version>${maven-compiler-plugin.version}</version>
-                <configuration>
-                    <source>${project.build.sourceVersion}</source>
-                    <target>${project.build.sourceVersion}</target>
-                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>com.carrotsearch.randomizedtesting</groupId>
+                <artifactId>junit4-maven-plugin</artifactId>
             </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-surefire-plugin</artifactId>
-                <version>2.9</version>
-                <configuration>
-                    <argLine>-Dtests.security.manager=false</argLine>
-                </configuration>
             </plugin>
 
             <plugin>
@@ -224,7 +234,7 @@
             </plugin>
             <plugin>
                 <artifactId>maven-assembly-plugin</artifactId>
-                <version>2.6</version>
+                <version>2.3</version>
                 <configuration>
                     <appendAssemblyId>false</appendAssemblyId>
                     <outputDirectory>${project.build.directory}/releases/</outputDirectory>
diff --git a/src/main/java/org/elasticsearch/index/analysis/PhoneEmailAnalyzer.java b/src/main/java/org/elasticsearch/index/analysis/PhoneEmailAnalyzer.java
index e93a7c9..1114fa5 100644
--- a/src/main/java/org/elasticsearch/index/analysis/PhoneEmailAnalyzer.java
+++ b/src/main/java/org/elasticsearch/index/analysis/PhoneEmailAnalyzer.java
@@ -9,7 +9,7 @@
 public class PhoneEmailAnalyzer extends Analyzer {
     
     @Override
-    protected TokenStreamComponents createComponents(String field) {
+    protected TokenStreamComponents createComponents(String fieldName) {
         TermExtractorTokenizer tokenizer = new TermExtractorTokenizer(new PhoneTermExtractor(), new EmailTermExtractor());
         return new TokenStreamComponents(tokenizer, new UniqueTokenFilter(tokenizer));
     }