diff --git a/reference/antlr4 b/reference/antlr4
index 3b47240b1..7fe8a6353 160000
--- a/reference/antlr4
+++ b/reference/antlr4
@@ -1 +1 @@
-Subproject commit 3b47240b199832690efb648b6f5c41abcd186143
+Subproject commit 7fe8a6353fab1798fa29777ed1f576aeae716cbf