diff --git a/pom.xml b/pom.xml
index 0bed08e1a..0693bbc65 100644
--- a/pom.xml
+++ b/pom.xml
@@ -30,7 +30,7 @@
 		<project.type>multi</project.type>
 		<dist.id>spring-data-mongodb</dist.id>
 		<springdata.commons>1.7.0.BUILD-SNAPSHOT</springdata.commons>
-		<mongo>2.10.1</mongo>
+		<mongo>2.11.3</mongo>
 	</properties>
 	
 	<developers>
diff --git a/spring-data-mongodb/pom.xml b/spring-data-mongodb/pom.xml
index da94c8847..f444aae7b 100644
--- a/spring-data-mongodb/pom.xml
+++ b/spring-data-mongodb/pom.xml
@@ -55,7 +55,7 @@
 		</dependency>
 
 		<!--  Spring Data -->
-			<dependency>
+		<dependency>
 			<groupId>${project.groupId}</groupId>
 			<artifactId>spring-data-commons</artifactId>
 			<version>${springdata.commons}</version>
diff --git a/spring-data-mongodb/src/test/java/org/springframework/data/mongodb/core/MongoExceptionTranslatorUnitTests.java b/spring-data-mongodb/src/test/java/org/springframework/data/mongodb/core/MongoExceptionTranslatorUnitTests.java
index 5d155d9ef..1342aee92 100644
--- a/spring-data-mongodb/src/test/java/org/springframework/data/mongodb/core/MongoExceptionTranslatorUnitTests.java
+++ b/spring-data-mongodb/src/test/java/org/springframework/data/mongodb/core/MongoExceptionTranslatorUnitTests.java
@@ -23,6 +23,9 @@ import java.net.UnknownHostException;
 
 import org.junit.Before;
 import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.runners.MockitoJUnitRunner;
 import org.springframework.core.NestedRuntimeException;
 import org.springframework.dao.DataAccessException;
 import org.springframework.dao.DataAccessResourceFailureException;
@@ -43,10 +46,13 @@ import com.mongodb.ServerAddress;
  * @author Michal Vich
  * @author Oliver Gierke
  */
+@RunWith(MockitoJUnitRunner.class)
 public class MongoExceptionTranslatorUnitTests {
 
 	MongoExceptionTranslator translator;
 
+	@Mock DuplicateKey exception;
+
 	@Before
 	public void setUp() {
 		translator = new MongoExceptionTranslator();
@@ -55,10 +61,8 @@ public class MongoExceptionTranslatorUnitTests {
 	@Test
 	public void translateDuplicateKey() {
 
-		DuplicateKey exception = new DuplicateKey(1, "Duplicated key");
 		DataAccessException translatedException = translator.translateExceptionIfPossible(exception);
-
-		expectExceptionWithCauseMessage(translatedException, DuplicateKeyException.class, "Duplicated key");
+		expectExceptionWithCauseMessage(translatedException, DuplicateKeyException.class, null);
 	}
 
 	@Test