diff --git a/build.gradle b/build.gradle
index 770aeb3c50c3d6a011d5839f9af024e2bca87e22..3f8a9272d6556b67e4f3b65f2925755fb3698df9 100644
--- a/build.gradle
+++ b/build.gradle
@@ -31,10 +31,10 @@ configurations.all {
 
 def parser_version
 if (isSnapshot) {
-	parser_version = '2.9.28-SNAPSHOT'
+	parser_version = '2.9.29-SNAPSHOT'
 }
 else {
-	parser_version = '2.9.27'
+	parser_version = '2.9.28'
 }
 
 def tlatools_version = '1.0.2'