Downgrade failsafe plugin

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1764810 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index 80bf932..449db36 100644
--- a/pom.xml
+++ b/pom.xml
@@ -73,6 +73,7 @@
             </plugin>
             <plugin>
                 <artifactId>maven-failsafe-plugin</artifactId>
+                <version>2.18.1</version>
                 <executions>
                     <execution>
                          <goals>