diff --git a/vaadin-eclipse-plugin-main/src/com/vaadin/plugin/wizards/VaadinProjectWizardPage.java b/vaadin-eclipse-plugin-main/src/com/vaadin/plugin/wizards/VaadinProjectWizardPage.java
index e809a81..acf7636 100644
--- a/vaadin-eclipse-plugin-main/src/com/vaadin/plugin/wizards/VaadinProjectWizardPage.java
+++ b/vaadin-eclipse-plugin-main/src/com/vaadin/plugin/wizards/VaadinProjectWizardPage.java
@@ -271,6 +271,9 @@ private void createProjectTypeSection(Composite parent) {
         languageCombo.select(0);
         languageCombo.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 
+        // Kotlin plugin for Eclipse is not maintained and broken
+        languageCombo.setEnabled(false);
+
         label = new Label(helloWorldGroup, SWT.NONE);
         label.setText("Build tool:");
 
diff --git a/vaadin-eclipse-plugin.tests/META-INF/MANIFEST.MF b/vaadin-eclipse-plugin.tests/META-INF/MANIFEST.MF
index cd261bb..f3c78d5 100644
--- a/vaadin-eclipse-plugin.tests/META-INF/MANIFEST.MF
+++ b/vaadin-eclipse-plugin.tests/META-INF/MANIFEST.MF
@@ -7,10 +7,10 @@ Bundle-Vendor: Vaadin
 Fragment-Host: vaadin-eclipse-plugin
 Bundle-RequiredExecutionEnvironment: JavaSE-17
 Require-Bundle: org.junit;bundle-version="4.0.0",
- org.hamcrest.core;bundle-version="1.3.0",
  org.eclipse.core.runtime,
  org.eclipse.core.resources,
  org.eclipse.ui,
  org.eclipse.ui.ide
 Import-Package: com.sun.net.httpserver,
+ org.hamcrest.core;bundle-version="1.3.0",
  com.google.gson;version="2.8.0"