diff --git a/packages/mobx-react/CHANGELOG.md b/packages/mobx-react/CHANGELOG.md
index 9eaa5ff14..aa4a34cf6 100644
--- a/packages/mobx-react/CHANGELOG.md
+++ b/packages/mobx-react/CHANGELOG.md
@@ -1,5 +1,11 @@
 # mobx-react
 
+## 9.2.2
+
+### Patch Changes
+
+-   [`82f1e426e8205348dd0954a4bd3f647b40109996`](https://github.com/mobxjs/mobx/commit/82f1e426e8205348dd0954a4bd3f647b40109996) [#4652](https://github.com/mobxjs/mobx/pull/4652) Thanks [@kubk](https://github.com/kubk)! - Avoid Rolldown invalid PURE annotation warnings from Babel-generated React version parsing output.
+
 ## 9.2.1
 
 ### Patch Changes
diff --git a/packages/mobx-react/package.json b/packages/mobx-react/package.json
index f471714bf..43ad918a4 100644
--- a/packages/mobx-react/package.json
+++ b/packages/mobx-react/package.json
@@ -1,6 +1,6 @@
 {
     "name": "mobx-react",
-    "version": "9.2.1",
+    "version": "9.2.2",
     "description": "React bindings for MobX. Create fully reactive components.",
     "source": "src/index.ts",
     "main": "dist/index.js",
diff --git a/packages/mobx-react/src/disposeOnUnmount.ts b/packages/mobx-react/src/disposeOnUnmount.ts
index fb5d7e251..6a1b64043 100644
--- a/packages/mobx-react/src/disposeOnUnmount.ts
+++ b/packages/mobx-react/src/disposeOnUnmount.ts
@@ -1,7 +1,7 @@
 import React from "react"
 import { patch } from "./utils/utils"
 
-const reactMajorVersion = Number.parseInt(React.version.split(".")[0])
+const reactMajorVersion = Number.parseInt(React.version, 10)
 let warnedAboutDisposeOnUnmountDeprecated = false
 
 type Disposer = () => void