diff --git a/org.eclipse.sisu.plexus/pom.xml b/org.eclipse.sisu.plexus/pom.xml
index 27eaaea..e35215e 100644
--- a/org.eclipse.sisu.plexus/pom.xml
+++ b/org.eclipse.sisu.plexus/pom.xml
@@ -112,7 +112,7 @@
       <plugin>
         <groupId>org.codehaus.mojo</groupId>
         <artifactId>build-helper-maven-plugin</artifactId>
-        <version>1.8</version>
+        <version>1.9.1</version>
         <executions>
           <execution>
             <id>attach-build-target</id>
diff --git a/pom.xml b/pom.xml
index ed4ea08..46afd06 100644
--- a/pom.xml
+++ b/pom.xml
@@ -59,7 +59,7 @@
   </mailingLists>
 
   <prerequisites>
-    <maven>3.0</maven>
+    <maven>3.0.5</maven>
   </prerequisites>
 
   <modules>
@@ -96,12 +96,12 @@
         <plugin>
           <groupId>org.codehaus.mojo</groupId>
           <artifactId>animal-sniffer-maven-plugin</artifactId>
-          <version>1.9</version>
+          <version>1.11</version>
           <configuration>
             <signature>
               <groupId>org.codehaus.mojo.signature</groupId>
               <artifactId>java16</artifactId>
-              <version>1.0</version>
+              <version>1.1</version>
             </signature>
           </configuration>
           <executions>
@@ -116,7 +116,7 @@
         </plugin>
         <plugin>
           <artifactId>maven-enforcer-plugin</artifactId>
-          <version>1.3</version>
+          <version>1.3.1</version>
           <configuration>
             <rules>
               <enforceBytecodeVersion>
@@ -128,7 +128,7 @@
             <dependency>
               <groupId>org.codehaus.mojo</groupId>
               <artifactId>extra-enforcer-rules</artifactId>
-              <version>1.0-beta-2</version>
+              <version>1.0-beta-3</version>
             </dependency>
           </dependencies>
         </plugin>
@@ -182,6 +182,16 @@
         </plugin>
         <plugin>
           <groupId>org.eclipse.tycho</groupId>
+          <artifactId>tycho-p2-publisher-plugin</artifactId>
+          <version>${tycho-version}</version>
+        </plugin>
+        <plugin>
+          <groupId>org.eclipse.tycho</groupId>
+          <artifactId>tycho-p2-repository-plugin</artifactId>
+          <version>${tycho-version}</version>
+        </plugin>
+        <plugin>
+          <groupId>org.eclipse.tycho</groupId>
           <artifactId>tycho-packaging-plugin</artifactId>
           <version>${tycho-version}</version>
           <configuration>
@@ -215,7 +225,7 @@
         </plugin>
         <plugin>
           <artifactId>maven-clean-plugin</artifactId>
-          <version>2.5</version>
+          <version>2.6</version>
         </plugin>
         <plugin>
           <artifactId>maven-resources-plugin</artifactId>
@@ -227,32 +237,32 @@
         </plugin>
         <plugin>
           <artifactId>maven-dependency-plugin</artifactId>
-          <version>2.8</version>
+          <version>2.9</version>
         </plugin>
         <plugin>
           <artifactId>maven-surefire-plugin</artifactId>
-          <version>2.14.1</version>
+          <version>2.17</version>
         </plugin>
         <plugin>
           <artifactId>maven-jar-plugin</artifactId>
-          <version>2.4</version>
+          <version>2.5</version>
         </plugin>
         <plugin>
           <artifactId>maven-install-plugin</artifactId>
-          <version>2.4</version>
+          <version>2.5.2</version>
         </plugin>
         <plugin>
           <artifactId>maven-deploy-plugin</artifactId>
-          <version>2.7</version>
+          <version>2.8.2</version>
         </plugin>
         <plugin>
           <groupId>org.sonatype.plugins</groupId>
           <artifactId>nexus-staging-maven-plugin</artifactId>
-          <version>1.4.4</version>
+          <version>1.6.4</version>
         </plugin>
         <plugin>
           <artifactId>maven-release-plugin</artifactId>
-          <version>2.4.1</version>
+          <version>2.5.1</version>
           <configuration>
             <dryRun>true</dryRun> <!-- releases are made using the prepare/perform_milestone.sh scripts -->
           </configuration>
@@ -264,7 +274,7 @@
             <docletArtifact>
               <groupId>com.google.doclava</groupId>
               <artifactId>doclava</artifactId>
-              <version>1.0.5</version>
+              <version>1.0.6</version>
             </docletArtifact>
             <doclet>com.google.doclava.Doclava</doclet>
             <!--
@@ -291,7 +301,7 @@
         </plugin>
         <plugin>
           <artifactId>maven-site-plugin</artifactId>
-          <version>3.3</version>
+          <version>3.4</version>
         </plugin>
       </plugins>
     </pluginManagement>
@@ -348,7 +358,7 @@
         <plugins>
           <plugin>
             <artifactId>maven-gpg-plugin</artifactId>
-            <version>1.4</version>
+            <version>1.5</version>
             <configuration>
               <passphrase>${gpg.passphrase}</passphrase>
               <useAgent>true</useAgent>