diff --git a/articles/hilla/reference/configuration.adoc b/articles/hilla/reference/configuration.adoc
index 6cd98a830d..583ed5ac06 100644
--- a/articles/hilla/reference/configuration.adoc
+++ b/articles/hilla/reference/configuration.adoc
@@ -31,3 +31,15 @@ It adds only `@vaadin/react-components` if `com.vaadin:vaadin-core` is used:
 	<artifactId>vaadin-core</artifactId>
 </dependency>
 ----
+
+== Enable React 19
+
+Hilla uses by default React 18, but is tested against both React 18 and 19. Thus you can enable React 19 using feature flag. 
+
+Edit the [filename]`src/main/resources/vaadin-featureflags.properties` file in your application folder, to enable the feature flag.
+
+.`vaadin-featureflags.properties`
+[source,properties]
+----
+com.vaadin.experimental.react19=true
+----