diff --git a/CHANGELOG.md b/CHANGELOG.md
index d449bb68..28fccd2a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 
 
+## [2.45.16](https://github.com/rokucommunity/vscode-brightscript-language/compare/v2.45.15...v2.45.16) - 2024-01-31
+### Changed
+ - upgrade to [brighterscript@0.65.21](https://github.com/rokucommunity/brighterscript/blob/master/CHANGELOG.md#06521---2024-01-31). Notable changes since 0.65.20:
+     - Fix parsing issues with multi-index IndexedSet and IndexedGet ([brighterscript#1050](https://github.com/rokucommunity/brighterscript/pull/1050))
+
+
+
 ## [2.45.15](https://github.com/rokucommunity/vscode-brightscript-language/compare/v2.45.14...v2.45.15) - 2024-01-30
 ### Changed
  - upgrade to [brighterscript@0.65.20](https://github.com/rokucommunity/brighterscript/blob/master/CHANGELOG.md#06520---2024-01-30). Notable changes since 0.65.19:
diff --git a/package-lock.json b/package-lock.json
index 6913332d..428783cd 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -14,7 +14,7 @@
                 "@vscode/extension-telemetry": "^0.4.7",
                 "array-sort": "^1.0.0",
                 "backoff": "^2.5.0",
-                "brighterscript": "^0.65.20",
+                "brighterscript": "^0.65.21",
                 "brighterscript-formatter": "^1.6.40",
                 "clone-deep": "^4.0.1",
                 "debounce": "^1.2.0",
@@ -2463,9 +2463,9 @@
             }
         },
         "node_modules/brighterscript": {
-            "version": "0.65.20",
-            "resolved": "https://registry.npmjs.org/brighterscript/-/brighterscript-0.65.20.tgz",
-            "integrity": "sha512-xU8t0R4DA/CZVJ68xYOFe3vcz0W3bg0lYnQpZUJbba4SuGBjcA3yBTaW4ILWgdAWN0wIoALu4wPI3Mc+3ikl8w==",
+            "version": "0.65.21",
+            "resolved": "https://registry.npmjs.org/brighterscript/-/brighterscript-0.65.21.tgz",
+            "integrity": "sha512-KijLoifDbIRf0wz/Zwv8FKFYTQIbgb5nSDepRG9D5YbNf+nd7F+4MWpKoS1YDfhaFZsBhvVjm+BpROgEspJpdQ==",
             "dependencies": {
                 "@rokucommunity/bslib": "^0.1.1",
                 "@xml-tools/parser": "^1.0.7",
@@ -12899,9 +12899,9 @@
             }
         },
         "brighterscript": {
-            "version": "0.65.20",
-            "resolved": "https://registry.npmjs.org/brighterscript/-/brighterscript-0.65.20.tgz",
-            "integrity": "sha512-xU8t0R4DA/CZVJ68xYOFe3vcz0W3bg0lYnQpZUJbba4SuGBjcA3yBTaW4ILWgdAWN0wIoALu4wPI3Mc+3ikl8w==",
+            "version": "0.65.21",
+            "resolved": "https://registry.npmjs.org/brighterscript/-/brighterscript-0.65.21.tgz",
+            "integrity": "sha512-KijLoifDbIRf0wz/Zwv8FKFYTQIbgb5nSDepRG9D5YbNf+nd7F+4MWpKoS1YDfhaFZsBhvVjm+BpROgEspJpdQ==",
             "requires": {
                 "@rokucommunity/bslib": "^0.1.1",
                 "@xml-tools/parser": "^1.0.7",
diff --git a/package.json b/package.json
index 53bd8512..2a659da0 100644
--- a/package.json
+++ b/package.json
@@ -56,7 +56,7 @@
         "@vscode/extension-telemetry": "^0.4.7",
         "array-sort": "^1.0.0",
         "backoff": "^2.5.0",
-        "brighterscript": "^0.65.20",
+        "brighterscript": "^0.65.21",
         "brighterscript-formatter": "^1.6.40",
         "clone-deep": "^4.0.1",
         "debounce": "^1.2.0",