diff --git a/hello-spring/src/main/java/org/folio/hello/HelloController.java b/hello-spring/src/main/java/org/folio/hello/HelloController.java
index b593e6a..79a0289 100644
--- a/hello-spring/src/main/java/org/folio/hello/HelloController.java
+++ b/hello-spring/src/main/java/org/folio/hello/HelloController.java
@@ -10,7 +10,7 @@
  * Main API controller
  */
 @RestController
-public final class HelloController implements HelloApi {
+public class HelloController implements HelloApi {
 
   public static final String GREETING = "Hello, world!\n";