diff --git a/lib/util/lex-parser.js b/lib/util/lex-parser.js
index f8a1d7901..2043c845f 100644
--- a/lib/util/lex-parser.js
+++ b/lib/util/lex-parser.js
@@ -1101,7 +1101,7 @@ case 37:
       }
       // a 'keyword' starts with an alphanumeric character,
       // followed by zero or more alphanumerics or digits:
-      var re = XRegExp('\\w[\\w\\d]*$', 'u');
+      var re = new XRegExp('\\w[\\w\\d]*$', XRegExp._registeredFlags()['u'] ? 'u' : '');
       if (XRegExp.match(this.$, re)) {
         this.$ = yyvstack[$0] + "\\b";
       } else {
diff --git a/modules/ebnf-parser b/modules/ebnf-parser
index 4553e4d76..f09d16bd0 160000
--- a/modules/ebnf-parser
+++ b/modules/ebnf-parser
@@ -1 +1 @@
-Subproject commit 4553e4d76afc04275c20e0189ac4cabba8e7b036
+Subproject commit f09d16bd07aab4d07780fac28c24616e9fed22e1
diff --git a/modules/jison-lex b/modules/jison-lex
index cb458d22a..63fc1a740 160000
--- a/modules/jison-lex
+++ b/modules/jison-lex
@@ -1 +1 @@
-Subproject commit cb458d22a35b24e3fd5757bd4a50ac7dd454938f
+Subproject commit 63fc1a7401a11581cc7388e510e91cd799f3d649
diff --git a/modules/lex-parser b/modules/lex-parser
index 89bf2a79a..2be43346d 160000
--- a/modules/lex-parser
+++ b/modules/lex-parser
@@ -1 +1 @@
-Subproject commit 89bf2a79a8123534f947f3791b6f868922d2a908
+Subproject commit 2be43346db4fb503ef34fcd1b5eb3c80c2f55d27
diff --git a/web/content/assets/js/jison.js b/web/content/assets/js/jison.js
index 795837a7c..ccc0289f8 100644
--- a/web/content/assets/js/jison.js
+++ b/web/content/assets/js/jison.js
@@ -7615,7 +7615,7 @@ case 37:
       }
       // a 'keyword' starts with an alphanumeric character,
       // followed by zero or more alphanumerics or digits:
-      var re = XRegExp('\\w[\\w\\d]*$', 'u');
+      var re = new XRegExp('\\w[\\w\\d]*$', XRegExp._registeredFlags()['u'] ? 'u' : '');
       if (XRegExp.match(this.$, re)) {
         this.$ = yyvstack[$0] + "\\b";
       } else {