diff --git a/build/antlr4.js b/build/antlr4.js
index 92f4931..7bd8d03 100644
--- a/build/antlr4.js
+++ b/build/antlr4.js
@@ -10,7 +10,6 @@ const entry = [
     'hive',
     'plsql',
     'spark',
-    'impala',
     'flinksql',
 ];