diff --git a/packages/node_modules/@node-red/editor-client/src/vendor/jsonata/mode-jsonata.js b/packages/node_modules/@node-red/editor-client/src/vendor/jsonata/mode-jsonata.js
index 2a90e4ce7..48358517e 100644
--- a/packages/node_modules/@node-red/editor-client/src/vendor/jsonata/mode-jsonata.js
+++ b/packages/node_modules/@node-red/editor-client/src/vendor/jsonata/mode-jsonata.js
@@ -28,6 +28,11 @@ ace.define("ace/mode/jsonata",["require","exports","module","ace/lib/oop","ace/m
         }, "identifier");
         this.$rules = {
             "start" : [
+                {
+                    token: "string.regexp",
+                    regex: "\\/",
+                    next: "regex"
+                },
                 {
                     token : "string",
                     regex : "'(?=.)",
@@ -46,34 +51,35 @@ ace.define("ace/mode/jsonata",["require","exports","module","ace/lib/oop","ace/m
                     token : "constant.numeric", // float
                     regex : /[+-]?\d[\d_]*(?:(?:\.\d*)?(?:[eE][+-]?\d+)?)?\b/
                 },
-                {   token: "keyword",
-                regex: /λ/
-            },
-            {
-                token: "keyword",
-                regex: jsonataFunctions
-            },
-            {
-                token : keywordMapper,
-                regex : "[a-zA-Z\\$_\u00a1-\uffff][a-zA-Z\\d\\$_\u00a1-\uffff]*"
-            },
-            {
-                token : "punctuation.operator",
-                regex : /[.](?![.])/
-            },
-            {
-                token : "keyword.operator",
-                regex : /\|\||<=|>=|\.\.|\*\*|!=|:=|[=<>`!$%&*+\-~\/^]/,
-                next  : "start"
-            },
-            {
-                token : "punctuation.operator",
-                regex : /[?:,;.]/,
-                next  : "start"
-            },
-            {
-                token : "paren.lparen",
-                regex : /[\[({]/,
+                {
+                    token: "keyword",
+                    regex: /λ/
+                },
+                {
+                    token: "keyword",
+                    regex: jsonataFunctions
+                },
+                {
+                    token : keywordMapper,
+                    regex : "[a-zA-Z\\$_\u00a1-\uffff][a-zA-Z\\d\\$_\u00a1-\uffff]*"
+                },
+                {
+                    token : "punctuation.operator",
+                    regex : /[.](?![.])/
+                },
+                {
+                    token : "keyword.operator",
+                    regex : /\|\||<=|>=|\.\.|\*\*|!=|:=|[=<>`!$%&*+\-~\/^]/,
+                    next  : "start"
+                },
+                {
+                    token : "punctuation.operator",
+                    regex : /[?:,;.]/,
+                    next  : "start"
+                },
+                {
+                    token : "paren.lparen",
+                    regex : /[\[({]/,
                     next  : "start"
                 },
                 {
@@ -86,7 +92,8 @@ ace.define("ace/mode/jsonata",["require","exports","module","ace/lib/oop","ace/m
                     token : "string",
                     regex : '"|$',
                     next  : "start"
-                }, {
+                },
+                {
                     defaultToken: "string"
                 }
             ],
@@ -95,9 +102,24 @@ ace.define("ace/mode/jsonata",["require","exports","module","ace/lib/oop","ace/m
                     token : "string",
                     regex : "'|$",
                     next  : "start"
-                }, {
+                },
+                {
                     defaultToken: "string"
                 }
+            ],
+            "regex" : [
+                {
+                    token: "string.regexp",
+                    regex: "\\\\/"
+                },
+                {
+                    token: "string.regexp",
+                    regex: "/[sxngimy]*",
+                    next: "start"
+                },
+                {
+                    defaultToken: "string.regexp"
+                }
             ]
         };
     };