diff --git a/pom.xml b/pom.xml
index 38f8d39..e780315 100644
--- a/pom.xml
+++ b/pom.xml
@@ -63,7 +63,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-surefire-plugin</artifactId>
-                <version>3.5.5</version>
+                <version>3.5.6</version>
             </plugin>
 
             <!--- Generates JavaDoc files during build phase. -->