diff --git a/org.eclipse.lsp4e.tests.mock/META-INF/MANIFEST.MF b/org.eclipse.lsp4e.tests.mock/META-INF/MANIFEST.MF
index 5681dd2f6..dcb03d46b 100644
--- a/org.eclipse.lsp4e.tests.mock/META-INF/MANIFEST.MF
+++ b/org.eclipse.lsp4e.tests.mock/META-INF/MANIFEST.MF
@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: Mock Language Server to test LSP4E
 Bundle-SymbolicName: org.eclipse.lsp4e.tests.mock
-Bundle-Version: 0.16.11.qualifier
+Bundle-Version: 0.16.12.qualifier
 Bundle-Vendor: Eclipse LSP4E
 Bundle-RequiredExecutionEnvironment: JavaSE-17
 Require-Bundle: org.eclipse.lsp4j;bundle-version="[0.23.0,0.24.0)",
diff --git a/org.eclipse.lsp4e.tests.mock/src/org/eclipse/lsp4e/tests/mock/MockLanguageServer.java b/org.eclipse.lsp4e.tests.mock/src/org/eclipse/lsp4e/tests/mock/MockLanguageServer.java
index 6e1a1decc..5007cb866 100644
--- a/org.eclipse.lsp4e.tests.mock/src/org/eclipse/lsp4e/tests/mock/MockLanguageServer.java
+++ b/org.eclipse.lsp4e.tests.mock/src/org/eclipse/lsp4e/tests/mock/MockLanguageServer.java
@@ -76,7 +76,7 @@
 import org.eclipse.lsp4j.services.LanguageServer;
 import org.eclipse.lsp4j.services.NotebookDocumentService;
 
-public final class MockLanguageServer implements LanguageServer {
+public class MockLanguageServer implements LanguageServer {
 
 	/**
 	 * This command will be reported on initialization to be supported for execution