diff --git a/core/src/test/java/io/cucumber/core/runner/TestHelper.java b/core/src/test/java/io/cucumber/core/runner/TestHelper.java
index <HASH>..<HASH> 100644
--- a/core/src/test/java/io/cucumber/core/runner/TestHelper.java
+++ b/core/src/test/java/io/cucumber/core/runner/TestHelper.java
@@ -77,6 +77,7 @@ public class TestHelper {
     private TestHelper() {
     }
 
+    @Deprecated
     public static Builder builder() {
         return new Builder();
     }
[Core] Deprecate TestHelper

The `TestHelper` is an overly complex way to run tests. Building a runtime
and stubbing the step definitions provides a much simpler and more reliable
way to test Cucumbers execution.

See the `JUnitFormatterTest` for implementation examples.