diff --git a/internal/web/src/completer.js b/internal/web/src/completer.js
index 341521d..1381d3e 100644
--- a/internal/web/src/completer.js
+++ b/internal/web/src/completer.js
@@ -647,7 +647,7 @@ var Completer = function (config) {
         },
         {
             caption: "$lookup",
-            value: '$lookup: {\n "from": "collection to join",\n "localField": "field from the input documents",\n "foreignField": "field from the documents of the from collection",\n "as": "output array field"\n}',
+            value: '$lookup: {\n "from": "collection to join",\n "localField": "field from the input documents",\n "foreignField": "field from the documents of the from collection",\n "let": {var1: "val1"},\n "pipeline": [],\n "as": "output array field"\n}',
             meta: "aggregation stage"
         },
         {
@@ -1187,6 +1187,11 @@ var Completer = function (config) {
             value: '$topN: {\n "n": "expression",\n "sortBy": { "field": 1 },\n "output": "expression"\n}',
             meta: "aggregation accumulator (v5.2+)"
         },
+        {
+            caption: "$sortArray",
+            value: '$sortArray: { input: "$arr", sortBy: { field: 1 } }',
+            meta: "aggregation accumulator (v5.2+)"
+        },
         {
             caption: "$linearFill",
             value: '$linearFill: "expression"',
@@ -1207,6 +1212,11 @@ var Completer = function (config) {
             value: '$tsSecond: "expression"',
             meta: "aggregation (v5.1+)"
         },
+        {
+            caption: "$toUUID",
+            value: '$toUUID: "expression"',
+            meta: "aggregation (v8.0+)"
+        },
     ].map(addInsertMatch).concat(basicBsonSnippet)