diff --git a/pom.xml b/pom.xml
index 696318c..dc0f9fa 100644
--- a/pom.xml
+++ b/pom.xml
@@ -228,7 +228,7 @@
         <dependency>
             <groupId>antlr</groupId>
             <artifactId>antlr</artifactId>
-            <version>2.7.7</version>
+            <version>20030911</version>
         </dependency>