diff --git a/maven-core/pom.xml b/maven-core/pom.xml
index 95162bde64..0e20235c09 100644
--- a/maven-core/pom.xml
+++ b/maven-core/pom.xml
@@ -134,7 +134,6 @@ under the License.
     <dependency>
       <groupId>org.mockito</groupId>
       <artifactId>mockito-core</artifactId>
-      <version>1.9.5</version>
       <scope>test</scope>
     </dependency>
   </dependencies>
diff --git a/maven-model-builder/pom.xml b/maven-model-builder/pom.xml
index fbfd417657..0dd08ac16d 100644
--- a/maven-model-builder/pom.xml
+++ b/maven-model-builder/pom.xml
@@ -80,7 +80,7 @@ under the License.
     <dependency>
       <groupId>xmlunit</groupId>
       <artifactId>xmlunit</artifactId>
-      <version>1.3</version>
+      <version>1.6</version>
       <scope>test</scope>
     </dependency>
   </dependencies>
diff --git a/maven-resolver-provider/pom.xml b/maven-resolver-provider/pom.xml
index 7d71e337bf..e95cc419e1 100644
--- a/maven-resolver-provider/pom.xml
+++ b/maven-resolver-provider/pom.xml
@@ -110,7 +110,6 @@ under the License.
     <dependency>
       <groupId>org.mockito</groupId>
       <artifactId>mockito-core</artifactId>
-      <version>1.9.5</version>
       <scope>test</scope>
     </dependency>
   </dependencies>
diff --git a/pom.xml b/pom.xml
index 83b7b180bd..d4d371b9ec 100644
--- a/pom.xml
+++ b/pom.xml
@@ -50,23 +50,23 @@ under the License.
     <maven.compiler.source>1.7</maven.compiler.source>
     <maven.compiler.target>1.7</maven.compiler.target>
     <classWorldsVersion>2.5.2</classWorldsVersion>
-    <commonsCliVersion>1.2</commonsCliVersion>
-    <commonsLangVersion>3.4</commonsLangVersion>
-    <junitVersion>4.11</junitVersion>
+    <commonsCliVersion>1.3.1</commonsCliVersion>
+    <commonsLangVersion>3.5</commonsLangVersion>
+    <junitVersion>4.12</junitVersion>
+    <mockitoVersion>1.10.19</mockitoVersion>
     <plexusVersion>1.7.1</plexusVersion>
-    <plexusInterpolationVersion>1.21</plexusInterpolationVersion>
-    <plexusUtilsVersion>3.0.22</plexusUtilsVersion>
-    <!-- Latest version of Guava that works with Sisu -->
-    <guavaVersion>18.0</guavaVersion>
+    <plexusInterpolationVersion>1.24</plexusInterpolationVersion>
+    <plexusUtilsVersion>3.0.24</plexusUtilsVersion>
+    <guavaVersion>20.0</guavaVersion>
     <guiceVersion>4.0</guiceVersion>
     <sisuInjectVersion>0.3.3</sisuInjectVersion>
     <wagonVersion>2.12</wagonVersion>
-    <securityDispatcherVersion>1.3</securityDispatcherVersion>
+    <securityDispatcherVersion>1.4</securityDispatcherVersion>
     <cipherVersion>1.7</cipherVersion>
     <modelloVersion>1.8.3</modelloVersion>
     <jxpathVersion>1.3</jxpathVersion>
     <resolverVersion>1.0.3</resolverVersion>
-    <slf4jVersion>1.7.5</slf4jVersion>
+    <slf4jVersion>1.7.22</slf4jVersion>
     <maven.test.redirectTestOutputToFile>true</maven.test.redirectTestOutputToFile>
     <!-- Control the name of the distribution and information output by mvn -->
     <distributionId>apache-maven</distributionId>
@@ -300,7 +300,7 @@ under the License.
       <dependency>
         <groupId>ch.qos.logback</groupId>
         <artifactId>logback-classic</artifactId>
-        <version>1.0.7</version>
+        <version>1.2.1</version>
         <optional>true</optional>
       </dependency>
       <!--  Wagon -->
@@ -393,6 +393,11 @@ under the License.
         <artifactId>plexus-cipher</artifactId>
         <version>${cipherVersion}</version>
       </dependency>
+      <dependency>
+        <groupId>org.mockito</groupId>
+        <artifactId>mockito-core</artifactId>
+        <version>${mockitoVersion}</version>
+      </dependency>
     </dependencies>
     <!--bootstrap-start-comment-->
   </dependencyManagement>