diff --git a/features/pom.xml b/features/pom.xml
index c7b666222..5410808d7 100644
--- a/features/pom.xml
+++ b/features/pom.xml
@@ -2,7 +2,6 @@
 <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
   <modelVersion>4.0.0</modelVersion>
-  <groupId>de.cau.cs.kieler.klighd</groupId>
   <artifactId>features</artifactId>
   <packaging>pom</packaging>
 
@@ -18,12 +17,10 @@
       <plugin>
         <groupId>org.eclipse.tycho.extras</groupId>
         <artifactId>tycho-source-feature-plugin</artifactId>
-        <version>${tycho-version}</version>
       </plugin>
       <plugin>
         <groupId>org.eclipse.tycho</groupId>
         <artifactId>tycho-p2-plugin</artifactId>
-        <version>${tycho-version}</version>
       </plugin>
       <!-- do not publish this artifact to Maven repositories -->
       <plugin>
diff --git a/plugins/de.cau.cs.kieler.kgraph.text/pom.xml b/plugins/de.cau.cs.kieler.kgraph.text/pom.xml
index 6c5880b1d..cdaf19e70 100644
--- a/plugins/de.cau.cs.kieler.kgraph.text/pom.xml
+++ b/plugins/de.cau.cs.kieler.kgraph.text/pom.xml
@@ -47,7 +47,6 @@
     <dependency>
       <groupId>org.eclipse.emf</groupId>
       <artifactId>org.eclipse.emf.ecore</artifactId>
-      <version>${emf-ecore-version}</version>
     </dependency>
     <dependency>
       <groupId>org.eclipse.emf</groupId>
diff --git a/plugins/de.cau.cs.kieler.klighd.kgraph/pom.xml b/plugins/de.cau.cs.kieler.klighd.kgraph/pom.xml
index a6d4f7a50..e9b2ab1e8 100644
--- a/plugins/de.cau.cs.kieler.klighd.kgraph/pom.xml
+++ b/plugins/de.cau.cs.kieler.klighd.kgraph/pom.xml
@@ -40,7 +40,6 @@
     <dependency>
       <groupId>org.eclipse.emf</groupId>
       <artifactId>org.eclipse.emf.ecore</artifactId>
-      <version>${emf-ecore-version}</version>
     </dependency>
   </dependencies>
 </project>
diff --git a/plugins/de.cau.cs.kieler.klighd.krendering/pom.xml b/plugins/de.cau.cs.kieler.klighd.krendering/pom.xml
index e74211634..c78caab22 100644
--- a/plugins/de.cau.cs.kieler.klighd.krendering/pom.xml
+++ b/plugins/de.cau.cs.kieler.klighd.krendering/pom.xml
@@ -50,7 +50,6 @@
     <dependency>
       <groupId>org.eclipse.emf</groupId>
       <artifactId>org.eclipse.emf.ecore</artifactId>
-      <version>${emf-ecore-version}</version>
     </dependency>
   </dependencies>
 
diff --git a/plugins/de.cau.cs.kieler.klighd.lsp/pom.xml b/plugins/de.cau.cs.kieler.klighd.lsp/pom.xml
index 969ec204a..26ab53b0c 100644
--- a/plugins/de.cau.cs.kieler.klighd.lsp/pom.xml
+++ b/plugins/de.cau.cs.kieler.klighd.lsp/pom.xml
@@ -101,7 +101,6 @@
     <dependency>
       <groupId>org.eclipse.emf</groupId>
       <artifactId>org.eclipse.emf.ecore</artifactId>
-      <version>${emf-ecore-version}</version>
     </dependency>
     <dependency>
       <groupId>org.eclipse.lsp4j</groupId>
diff --git a/plugins/de.cau.cs.kieler.klighd.setup/pom.xml b/plugins/de.cau.cs.kieler.klighd.setup/pom.xml
index 3af43af7f..99dba095c 100644
--- a/plugins/de.cau.cs.kieler.klighd.setup/pom.xml
+++ b/plugins/de.cau.cs.kieler.klighd.setup/pom.xml
@@ -88,40 +88,6 @@
       <version>${project.version}</version>
     </dependency>
   </dependencies>
-  <dependencyManagement>
-    <dependencies>
-      <dependency>
-        <groupId>org.eclipse.elk</groupId>
-        <artifactId>org.eclipse.elk.alg.force</artifactId>
-        <version>${elk-version}</version>
-      </dependency>
-      <dependency>
-        <groupId>org.eclipse.elk</groupId>
-        <artifactId>org.eclipse.elk.alg.graphviz.dot</artifactId>
-        <version>${elk-version}</version>
-      </dependency>
-      <dependency>
-        <groupId>org.eclipse.elk</groupId>
-        <artifactId>org.eclipse.elk.alg.graphviz.layouter</artifactId>
-        <version>${elk-version}</version>
-      </dependency>
-      <dependency>
-        <groupId>org.eclipse.elk</groupId>
-        <artifactId>org.eclipse.elk.alg.layered</artifactId>
-        <version>${elk-version}</version>
-      </dependency>
-      <dependency>
-        <groupId>org.eclipse.elk</groupId>
-        <artifactId>org.eclipse.elk.alg.mrtree</artifactId>
-        <version>${elk-version}</version>
-      </dependency>
-      <dependency>
-        <groupId>org.eclipse.elk</groupId>
-        <artifactId>org.eclipse.elk.alg.radial</artifactId>
-        <version>${elk-version}</version>
-      </dependency>
-    </dependencies>
-  </dependencyManagement>
 
   <build>
     <resources>
diff --git a/plugins/de.cau.cs.kieler.klighd/pom.xml b/plugins/de.cau.cs.kieler.klighd/pom.xml
index a076e4afd..f9f894fa5 100644
--- a/plugins/de.cau.cs.kieler.klighd/pom.xml
+++ b/plugins/de.cau.cs.kieler.klighd/pom.xml
@@ -42,7 +42,6 @@
     <dependency>
       <groupId>org.eclipse.emf</groupId>
       <artifactId>org.eclipse.emf.ecore</artifactId>
-      <version>${emf-ecore-version}</version>
     </dependency>
     <dependency>
       <groupId>org.eclipse.emf</groupId>
@@ -62,7 +61,6 @@
     <dependency>
       <groupId>org.eclipse.platform</groupId>
       <artifactId>org.eclipse.ui.workbench</artifactId>
-      <version>${ui-workbench-version}</version>
     </dependency>
     <dependency>
       <groupId>com.google.inject</groupId>
diff --git a/plugins/pom.xml b/plugins/pom.xml
index 34f08178d..31e60fce6 100644
--- a/plugins/pom.xml
+++ b/plugins/pom.xml
@@ -2,7 +2,6 @@
 <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
   <modelVersion>4.0.0</modelVersion>
-  <groupId>de.cau.cs.kieler.klighd</groupId>
   <artifactId>plugins</artifactId>
   <packaging>pom</packaging>
 
diff --git a/test/pom.xml b/test/pom.xml
index d347d2e44..eef03d295 100644
--- a/test/pom.xml
+++ b/test/pom.xml
@@ -2,7 +2,6 @@
 <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
   <modelVersion>4.0.0</modelVersion>
-  <groupId>de.cau.cs.kieler.klighd</groupId>
   <artifactId>test</artifactId>
   <packaging>pom</packaging>