diff --git a/pom.xml b/pom.xml
index c075e67..e8b9837 100644
--- a/pom.xml
+++ b/pom.xml
@@ -20,7 +20,7 @@
     <packaging>pom</packaging>
 
     <name>SonarQube Elixir</name>
-    <url></url>
+    <url/>
     <organization>
         <name>${dev.name}</name>
     </organization>
@@ -37,13 +37,13 @@
         </developer>
     </developers>
     <issueManagement>
-        <system></system>
-        <url></url>
+        <system/>
+        <url/>
     </issueManagement>
     <scm>
         <connection>scm:git:</connection>
         <developerConnection>scm:git:</developerConnection>
-        <url></url>
+        <url/>
         <tag>HEAD</tag>
     </scm>
 
@@ -51,7 +51,7 @@
         <dev.nick>arthepsy</dev.nick>
         <dev.name>Andris Raugulis</dev.name>
         <dev.mail>moo@arthepsy.eu</dev.mail>
-        <sonar.version>4.5</sonar.version>
+        <sonar.version>4.5.7</sonar.version>
         <maven.buildNumber.timestampFormat>{0,date,yyyy-MM-dd HH:mm:ssa}</maven.buildNumber.timestampFormat>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>