diff --git a/CHANGELOG.md b/CHANGELOG.md
index b1540dc7..d3d2f5ab 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -22,6 +22,7 @@ All notable changes to this project will be documented in this file, in reverse
 
 ### Fixed
 
+- [#229](https://github.com/scoutapp/scout-apm-php/pull/229) Updated `scoutapm.stub.php` stub to match latest extension version
 - [#227](https://github.com/scoutapp/scout-apm-php/pull/227) Fixed "double logging" of SQL queries with new "leafNode" flag on spans
 
 ## 6.3.0 - 2021-06-17
diff --git a/stub/scoutapm.stub.php b/stub/scoutapm.stub.php
index 60e3b2e4..6ed36465 100644
--- a/stub/scoutapm.stub.php
+++ b/stub/scoutapm.stub.php
@@ -4,7 +4,8 @@
  * Stub file useful for IDEs like PhpStorm where definitions for the `scout-apm-php-ext` PHP extension are not available
  */
 
-/**
- * @return array<int, (string|float)>
- */
+/** @psalm-return list<array{function:string, entered:float, exited: float, time_taken: float, argv: mixed[]}> */
 function scoutapm_get_calls() : array {}
+function scoutapm_enable_instrumentation(bool $enabled): void {}
+/** @return list<string> */
+function scoutapm_list_instrumented_functions(): array {}