diff --git a/build.gradle b/build.gradle
index 92fa3a0..43bdafe 100644
--- a/build.gradle
+++ b/build.gradle
@@ -19,7 +19,7 @@ ext {
   version_nodejs = '16.14.2' // keep in sync with npm
   version_npm = '8.5.0'    // keep in sync with nodejs
 
-  lib_antlr = "org.antlr:antlr4:4.9.3"
+  lib_antlr = "org.antlr:antlr4:4.11.1"
 
   lib_commons_collections4 = 'org.apache.commons:commons-collections4:4.4'
   lib_commons_csv= 'org.apache.commons:commons-csv:1.9.0'