diff --git a/pom.xml b/pom.xml
index 41135fb..ce08eec 100644
--- a/pom.xml
+++ b/pom.xml
@@ -44,7 +44,7 @@
 
   <properties>
     <sonar.pluginClass>org.sonar.plugins.l10n.JapanesePackPlugin</sonar.pluginClass>
-    <sonar.version>3.5</sonar.version>
+    <sonar.version>3.7.4</sonar.version>
     <sonar-core-plugin.version>3.5</sonar-core-plugin.version>
     <sonar-findbugs-plugin.version>3.3.2</sonar-findbugs-plugin.version>
     <sonar-l10n-en-plugin.version>3.5</sonar-l10n-en-plugin.version>