diff --git a/pom.xml b/pom.xml
index 8f896793573..17fa77ec62b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -25,7 +25,7 @@
         <groupId>org.apache</groupId>
         <artifactId>apache</artifactId>
         <version>23</version>
-        <relativePath />
+        <relativePath/>
     </parent>
 
     <groupId>org.apache.karaf</groupId>
@@ -281,7 +281,7 @@
         <jsw.version>3.2.3</jsw.version>
         <log4j.version>1.2.17</log4j.version>
         <maven.version>3.6.3</maven.version>
-        <maven.wagon.version>3.2.0</maven.wagon.version>
+        <maven.wagon.version>3.5.3</maven.wagon.version>
         <maven-plugin-annotations.version>3.6.0</maven-plugin-annotations.version>
         <maven.resolver.version>1.3.1</maven.resolver.version>
         <org.osgi.service.jdbc.version>1.0.0</org.osgi.service.jdbc.version>
@@ -333,7 +333,7 @@
         <winsw.version>2.3.0</winsw.version>
 
 
-        <surefire.argLine />
+        <surefire.argLine/>
 
         <!-- Further used maven plugin versions; e.g. in the docs -->
         <plugin.depends.version>1.4.0</plugin.depends.version>
@@ -588,7 +588,7 @@
                                         </goals>
                                     </pluginExecutionFilter>
                                     <action>
-                                        <ignore />
+                                        <ignore/>
                                     </action>
                                 </pluginExecution>
                                 <pluginExecution>
@@ -602,7 +602,7 @@
                                         </goals>
                                     </pluginExecutionFilter>
                                     <action>
-                                        <ignore />
+                                        <ignore/>
                                     </action>
                                 </pluginExecution>
                                 <pluginExecution>
@@ -615,7 +615,7 @@
                                         </goals>
                                     </pluginExecutionFilter>
                                     <action>
-                                        <ignore />
+                                        <ignore/>
                                     </action>
                                 </pluginExecution>
                                 <pluginExecution>
@@ -628,7 +628,7 @@
                                         </goals>
                                     </pluginExecutionFilter>
                                     <action>
-                                        <ignore />
+                                        <ignore/>
                                     </action>
                                 </pluginExecution>
                             </pluginExecutions>
diff --git a/tooling/karaf-maven-plugin/pom.xml b/tooling/karaf-maven-plugin/pom.xml
index b48e47655e1..4532e419870 100644
--- a/tooling/karaf-maven-plugin/pom.xml
+++ b/tooling/karaf-maven-plugin/pom.xml
@@ -34,9 +34,9 @@
 
     <properties>
         <appendedResourcesDirectory>${basedir}/../../etc/appended-resources</appendedResourcesDirectory>
-        <mvn.opts />
-        <invoker.skip />
-        <compiler.fork />
+        <mvn.opts/>
+        <invoker.skip/>
+        <compiler.fork/>
         <jacoco-class-line-covered-ratio>0.00</jacoco-class-line-covered-ratio>
         <jacoco-class-instruction-covered-ratio>0.00</jacoco-class-instruction-covered-ratio>
         <jacoco-class-missed-count-maximum>1</jacoco-class-missed-count-maximum>
@@ -61,7 +61,7 @@
             <dependency>
                 <groupId>org.apache.karaf.tooling</groupId>
                 <artifactId>org.apache.karaf.tools.utils</artifactId>
-                <version>4.2.10</version>
+                <version>4.4.5</version>
             </dependency>
             <dependency>
                 <groupId>org.apache.karaf.features</groupId>
@@ -202,7 +202,7 @@
         <dependency>
             <groupId>org.apache.karaf.tooling</groupId>
             <artifactId>org.apache.karaf.tools.utils</artifactId>
-            <version>${project.version}</version>
+            <version>4.4.5</version>
         </dependency>
         <dependency>
             <groupId>org.slf4j</groupId>
@@ -252,7 +252,7 @@
         <dependency>
             <groupId>org.codehaus.plexus</groupId>
             <artifactId>plexus-archiver</artifactId>
-            <version>3.5</version>
+            <version>4.9.2</version>
         </dependency>
         <dependency>
             <groupId>org.apache.felix</groupId>