diff --git a/CHANGELOG.md b/CHANGELOG.md
index 77aec149..8dfc1f8e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,8 @@
 ## Unreleased
 ### ⚠ Breaking
 ### ⭐ New Features
+- Added support for parent-child-relationships of projects with Dependency-Track v4.7 and newer (fixes [#139](https://github.com/jenkinsci/dependency-track-plugin/issues/139))
+
 ### 🐞 Bugs Fixed
 - Searching on the result page was partially broken due to [a bug in bootstrap-vue 2.22+](https://github.com/bootstrap-vue/bootstrap-vue/issues/6967)
 
diff --git a/src/main/java/org/jenkinsci/plugins/DependencyTrack/ApiClient.java b/src/main/java/org/jenkinsci/plugins/DependencyTrack/ApiClient.java
index 8fa20a5a..03d69212 100644
--- a/src/main/java/org/jenkinsci/plugins/DependencyTrack/ApiClient.java
+++ b/src/main/java/org/jenkinsci/plugins/DependencyTrack/ApiClient.java
@@ -327,6 +327,11 @@ public void updateProjectProperties(@NonNull final String projectUuid, @NonNull
         rawProject.elementOpt("group", properties.getGroup());
         // overwrite description only if it is set (means not null)
         rawProject.elementOpt("description", properties.getDescription());
+        // set new parent project if it is set (means not null)
+        if (properties.getParentId() != null) {
+            JSONObject newParent = new JSONObject().elementOpt("uuid", properties.getParentId());
+            rawProject.element("parent", newParent);
+        }
         // 3. update project
         updateProject(projectUuid, rawProject);
     }
diff --git a/src/main/java/org/jenkinsci/plugins/DependencyTrack/DescriptorImpl.java b/src/main/java/org/jenkinsci/plugins/DependencyTrack/DescriptorImpl.java
index dd0bb8f6..e413c675 100644
--- a/src/main/java/org/jenkinsci/plugins/DependencyTrack/DescriptorImpl.java
+++ b/src/main/java/org/jenkinsci/plugins/DependencyTrack/DescriptorImpl.java
@@ -69,7 +69,7 @@
  */
 @Extension
 @Symbol("dependencyTrackPublisher") // This indicates to Jenkins that this is an implementation of an extension point.
-public final class DescriptorImpl extends BuildStepDescriptor<Publisher> implements Serializable {
+public class DescriptorImpl extends BuildStepDescriptor<Publisher> implements Serializable {
 
     private static final long serialVersionUID = -2018722914973282748L;
 
diff --git a/src/main/java/org/jenkinsci/plugins/DependencyTrack/ProjectParser.java b/src/main/java/org/jenkinsci/plugins/DependencyTrack/ProjectParser.java
index c9db5d5a..881c438f 100644
--- a/src/main/java/org/jenkinsci/plugins/DependencyTrack/ProjectParser.java
+++ b/src/main/java/org/jenkinsci/plugins/DependencyTrack/ProjectParser.java
@@ -44,6 +44,7 @@ Project parse(final JSONObject json) {
                 .active(activeStr != null ? Boolean.parseBoolean(activeStr) : null)
                 .swidTagId(getKeyOrNull(json, "swidTagId"))
                 .group(getKeyOrNull(json, "group"))
+                .parent(json.has("parent") ? ProjectParser.parse(json.getJSONObject("parent")) : null)
                 .build();
     }
 
diff --git a/src/main/java/org/jenkinsci/plugins/DependencyTrack/ProjectProperties.java b/src/main/java/org/jenkinsci/plugins/DependencyTrack/ProjectProperties.java
index bfa31cac..0642d2ff 100644
--- a/src/main/java/org/jenkinsci/plugins/DependencyTrack/ProjectProperties.java
+++ b/src/main/java/org/jenkinsci/plugins/DependencyTrack/ProjectProperties.java
@@ -16,19 +16,27 @@
 package org.jenkinsci.plugins.DependencyTrack;
 
 import edu.umd.cs.findbugs.annotations.NonNull;
+import edu.umd.cs.findbugs.annotations.Nullable;
 import hudson.Extension;
+import hudson.RelativePath;
 import hudson.model.AbstractDescribableImpl;
 import hudson.model.Descriptor;
+import hudson.model.Item;
+import hudson.util.ListBoxModel;
 import java.io.Serializable;
 import java.util.Collection;
 import java.util.List;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
+import jenkins.model.Jenkins;
 import lombok.EqualsAndHashCode;
 import lombok.Getter;
 import org.apache.commons.lang.StringUtils;
+import org.kohsuke.stapler.AncestorInPath;
 import org.kohsuke.stapler.DataBoundConstructor;
 import org.kohsuke.stapler.DataBoundSetter;
+import org.kohsuke.stapler.QueryParameter;
+import org.kohsuke.stapler.verb.POST;
 
 import static org.jenkinsci.plugins.DependencyTrack.PluginUtil.areAllElementsOfType;
 
@@ -46,22 +54,32 @@ public final class ProjectProperties extends AbstractDescribableImpl<ProjectProp
     /**
      * Tags to set for the project
      */
+    @Nullable
     private List<String> tags;
 
     /**
      * SWID Tag ID for the project
      */
+    @Nullable
     private String swidTagId;
     
     /**
      * Group to set for the project
      */
+    @Nullable
     private String group;
     
     /**
      * Description to set for the project
      */
+    @Nullable
     private String description;
+    
+    /**
+     * UUID of the parent project
+     */
+    @Nullable
+    private String parentId;
 
     @NonNull
     public List<String> getTags() {
@@ -111,6 +129,11 @@ public void setDescription(final String description) {
         this.description = StringUtils.trimToNull(description);
     }
 
+    @DataBoundSetter
+    public void setParentId(final String parentId) {
+        this.parentId = StringUtils.trimToNull(parentId);
+    }
+
     @NonNull
     public String getTagsAsText() {
         return StringUtils.join(getTags(), System.lineSeparator());
@@ -129,5 +152,19 @@ private List<String> normalizeTags(final Collection<String> values) {
 
     @Extension
     public static class DescriptorImpl extends Descriptor<ProjectProperties> {
+
+        /**
+         * Retrieve the projects to populate the dropdown.
+         *
+         * @param dependencyTrackUrl the base URL to Dependency-Track
+         * @param dependencyTrackApiKey the API key to use for authentication
+         * @param item used to lookup credentials in job config
+         * @return ListBoxModel
+         */
+        @POST
+        public ListBoxModel doFillParentIdItems(@RelativePath("..") @QueryParameter final String dependencyTrackUrl, @RelativePath("..") @QueryParameter final String dependencyTrackApiKey, @AncestorInPath @Nullable final Item item) {
+            org.jenkinsci.plugins.DependencyTrack.DescriptorImpl pluginDescriptor = Jenkins.get().getDescriptorByType(org.jenkinsci.plugins.DependencyTrack.DescriptorImpl.class);
+            return pluginDescriptor.doFillProjectIdItems(dependencyTrackUrl, dependencyTrackApiKey, item);
+        }
     }
 }
diff --git a/src/main/java/org/jenkinsci/plugins/DependencyTrack/model/Project.java b/src/main/java/org/jenkinsci/plugins/DependencyTrack/model/Project.java
index cf75498c..2051d2c8 100644
--- a/src/main/java/org/jenkinsci/plugins/DependencyTrack/model/Project.java
+++ b/src/main/java/org/jenkinsci/plugins/DependencyTrack/model/Project.java
@@ -23,4 +23,5 @@ public class Project implements Serializable {
     private Boolean active;
     private String swidTagId;
     private String group;
+    private Project parent;
 }
diff --git a/src/main/resources/org/jenkinsci/plugins/DependencyTrack/ProjectProperties/config.jelly b/src/main/resources/org/jenkinsci/plugins/DependencyTrack/ProjectProperties/config.jelly
index d5d46036..210c25c7 100644
--- a/src/main/resources/org/jenkinsci/plugins/DependencyTrack/ProjectProperties/config.jelly
+++ b/src/main/resources/org/jenkinsci/plugins/DependencyTrack/ProjectProperties/config.jelly
@@ -28,5 +28,8 @@ limitations under the License.
     <f:entry field="description" title="${%description}">
         <f:textbox id="description" />
     </f:entry>
+    <f:entry field="parentId" title="${%parentId}">
+        <f:select id="parentId"/>
+    </f:entry>
 
 </j:jelly>
diff --git a/src/main/resources/org/jenkinsci/plugins/DependencyTrack/ProjectProperties/config.properties b/src/main/resources/org/jenkinsci/plugins/DependencyTrack/ProjectProperties/config.properties
index 827cc021..f5088828 100644
--- a/src/main/resources/org/jenkinsci/plugins/DependencyTrack/ProjectProperties/config.properties
+++ b/src/main/resources/org/jenkinsci/plugins/DependencyTrack/ProjectProperties/config.properties
@@ -16,3 +16,4 @@ tags=Tags
 swidTagId=SWID Tag ID
 group=Namespace / Group / Vendor
 description=Description
+parentId=Parent project
\ No newline at end of file
diff --git a/src/main/resources/org/jenkinsci/plugins/DependencyTrack/ProjectProperties/config_de.properties b/src/main/resources/org/jenkinsci/plugins/DependencyTrack/ProjectProperties/config_de.properties
index 79575254..3b52dc75 100644
--- a/src/main/resources/org/jenkinsci/plugins/DependencyTrack/ProjectProperties/config_de.properties
+++ b/src/main/resources/org/jenkinsci/plugins/DependencyTrack/ProjectProperties/config_de.properties
@@ -16,3 +16,4 @@ tags=Tags
 swidTagId=SWID Tag ID
 group=Namensraum / Gruppe / Hersteller
 description=Beschreibung
+parentId=\u00dcbergeordnetes Projekt
\ No newline at end of file
diff --git a/src/main/resources/org/jenkinsci/plugins/DependencyTrack/ProjectProperties/help-parentId.html b/src/main/resources/org/jenkinsci/plugins/DependencyTrack/ProjectProperties/help-parentId.html
new file mode 100644
index 00000000..10f6cab2
--- /dev/null
+++ b/src/main/resources/org/jenkinsci/plugins/DependencyTrack/ProjectProperties/help-parentId.html
@@ -0,0 +1,3 @@
+<div>
+    The ID (UUID) of the parent project.
+</div>
diff --git a/src/main/resources/org/jenkinsci/plugins/DependencyTrack/ProjectProperties/help-parentId_de.html b/src/main/resources/org/jenkinsci/plugins/DependencyTrack/ProjectProperties/help-parentId_de.html
new file mode 100644
index 00000000..8e07eccc
--- /dev/null
+++ b/src/main/resources/org/jenkinsci/plugins/DependencyTrack/ProjectProperties/help-parentId_de.html
@@ -0,0 +1,3 @@
+<div>
+    Die ID (UUID) des übergeordneten Projektes.
+</div>
diff --git a/src/test/java/org/jenkinsci/plugins/DependencyTrack/ApiClientTest.java b/src/test/java/org/jenkinsci/plugins/DependencyTrack/ApiClientTest.java
index 0ba929b8..29c9bd41 100644
--- a/src/test/java/org/jenkinsci/plugins/DependencyTrack/ApiClientTest.java
+++ b/src/test/java/org/jenkinsci/plugins/DependencyTrack/ApiClientTest.java
@@ -359,7 +359,7 @@ public void updateProjectPropertiesTest() throws ApiClientException, Interrupted
                     .get(ApiClient.PROJECT_URL + "/uuid-3", (request, response) -> {
                         assertThat(request.requestHeaders().contains(ApiClient.API_KEY_HEADER, API_KEY, false)).isTrue();
                         assertThat(request.requestHeaders().contains(HttpHeaderNames.ACCEPT, HttpHeaderValues.APPLICATION_JSON, true)).isTrue();
-                        return response.sendString(Mono.just("{\"name\":\"test-project\",\"uuid\":\"uuid-3\",\"version\":\"1.2.3\",\"tags\":[{\"name\":\"tag1\"},{\"name\":\"tag2\"}]}"));
+                        return response.sendString(Mono.just("{\"name\":\"test-project\",\"uuid\":\"uuid-3\",\"version\":\"1.2.3\",\"tags\":[{\"name\":\"tag1\"},{\"name\":\"tag2\"}],\"parent\":{\"uuid\":\"old-parent\"}}"));
                     })
                     .post(ApiClient.PROJECT_URL, (request, response) -> {
                         assertThat(request.requestHeaders().contains(ApiClient.API_KEY_HEADER, API_KEY, false)).isTrue();
@@ -380,6 +380,7 @@ public void updateProjectPropertiesTest() throws ApiClientException, Interrupted
         props.setSwidTagId("my swid tag id");
         props.setGroup("my group");
         props.setDescription("my description");
+        props.setParentId("parent-uuid");
 
         assertThatCode(() -> uut.updateProjectProperties("uuid-3", props)).doesNotThrowAnyException();
         completionSignal.await(5, TimeUnit.SECONDS);
@@ -388,6 +389,7 @@ public void updateProjectPropertiesTest() throws ApiClientException, Interrupted
         assertThat(project.getSwidTagId()).isEqualTo(props.getSwidTagId());
         assertThat(project.getGroup()).isEqualTo(props.getGroup());
         assertThat(project.getDescription()).isEqualTo(props.getDescription());
+        assertThat(project.getParent()).hasFieldOrPropertyWithValue("uuid", props.getParentId());
     }
 
     @Test
diff --git a/src/test/java/org/jenkinsci/plugins/DependencyTrack/ProjectPropertiesTest.java b/src/test/java/org/jenkinsci/plugins/DependencyTrack/ProjectPropertiesTest.java
index 93bd3e8f..f9760a08 100644
--- a/src/test/java/org/jenkinsci/plugins/DependencyTrack/ProjectPropertiesTest.java
+++ b/src/test/java/org/jenkinsci/plugins/DependencyTrack/ProjectPropertiesTest.java
@@ -15,15 +15,22 @@
  */
 package org.jenkinsci.plugins.DependencyTrack;
 
+import hudson.util.ReflectionUtils;
+import java.lang.reflect.Field;
 import java.util.Collections;
 import java.util.List;
 import java.util.Set;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
+import jenkins.model.Jenkins;
+import org.junit.jupiter.api.Nested;
 import org.junit.jupiter.api.Test;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatCode;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
 
 /**
  *
@@ -70,8 +77,32 @@ void verifyEmptyStringsShallBeNull() {
         uut.setDescription("");
         uut.setGroup("\t");
         uut.setSwidTagId(System.lineSeparator());
+        uut.setParentId("       ");
         assertThat(uut.getDescription()).isNull();
         assertThat(uut.getGroup()).isNull();
         assertThat(uut.getSwidTagId()).isNull();
+        assertThat(uut.getParentId()).isNull();
+    }
+
+    @Nested
+    class DescriptorImplTest {
+
+        @Test
+        void doFillParentIdItemsTest() throws Exception {
+            Field instanceField = ReflectionUtils.findField(Jenkins.class, "theInstance", Jenkins.class);
+            ReflectionUtils.makeAccessible(instanceField);
+            Jenkins origJenkins = (Jenkins) instanceField.get(null);
+            Jenkins mockJenkins = mock(Jenkins.class);
+            ReflectionUtils.setField(instanceField, null, mockJenkins);
+            org.jenkinsci.plugins.DependencyTrack.DescriptorImpl descriptorMock = mock(org.jenkinsci.plugins.DependencyTrack.DescriptorImpl.class);
+            when(mockJenkins.getDescriptorByType(org.jenkinsci.plugins.DependencyTrack.DescriptorImpl.class)).thenReturn(descriptorMock);
+            ProjectProperties.DescriptorImpl uut = new ProjectProperties.DescriptorImpl();
+
+            uut.doFillParentIdItems("url", "key", null);
+
+            ReflectionUtils.setField(instanceField, null, origJenkins);
+            verify(mockJenkins).getDescriptorByType(org.jenkinsci.plugins.DependencyTrack.DescriptorImpl.class);
+            verify(descriptorMock).doFillProjectIdItems("url", "key", null);
+        }
     }
 }