diff --git a/gradle/versions.gradle b/gradle/versions.gradle
index 93e846be1..6af98d3bf 100644
--- a/gradle/versions.gradle
+++ b/gradle/versions.gradle
@@ -6,6 +6,6 @@ version = '2.21.0-SNAPSHOT'
 
 ext.versions = [
 	'xtext': version,
-	'xtext_bootstrap': '2.21.0.M1',
+	'xtext_bootstrap': '2.21.0.M2',
 	'xtext_gradle_plugin': '2.0.8'
 ]