diff --git a/package-lock.json b/package-lock.json
index 9139b78e8..b28b9fc51 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -38,9 +38,9 @@
       }
     },
     "@types/mocha": {
-      "version": "2.2.44",
-      "resolved": "https://registry.npmjs.org/@types/mocha/-/mocha-2.2.44.tgz",
-      "integrity": "sha512-k2tWTQU8G4+iSMvqKi0Q9IIsWAp/n8xzdZS4Q4YVIltApoMA00wFBFdlJnmoaK1/z7B0Cy0yPe6GgXteSmdUNw==",
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/@types/mocha/-/mocha-5.0.0.tgz",
+      "integrity": "sha512-ZS0vBV7Jn5Z/Q4T3VXauEKMDCV8nWOtJJg90OsDylkYJiQwcWtKuLzohWzrthBkerUF7DLMmJcwOPEP0i/AOXw==",
       "dev": true
     },
     "@types/node": {
@@ -1141,9 +1141,9 @@
       "dev": true
     },
     "typescript": {
-      "version": "2.7.2",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-2.7.2.tgz",
-      "integrity": "sha512-p5TCYZDAO0m4G344hD+wx/LATebLWZNkkh2asWUFqSsD2OrDNhbAHuSjobrmsUmdzjJjEeZVU9g1h3O6vpstnw==",
+      "version": "2.8.1",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-2.8.1.tgz",
+      "integrity": "sha512-Ao/f6d/4EPLq0YwzsQz8iXflezpTkQzqAyenTiw4kCUGr1uPiFLC3+fZ+gMZz6eeI/qdRUqvC+HxIJzUAzEFdg==",
       "dev": true
     },
     "ua-parser-js": {
diff --git a/package.json b/package.json
index 102f1b8d4..4e055c8eb 100644
--- a/package.json
+++ b/package.json
@@ -70,7 +70,7 @@
     "semver": "^5.1.0",
     "tslint": "^5.0.0",
     "tslint-config-standard": "^7.0.0",
-    "typescript": "^2.7.2"
+    "typescript": "^2.8.1"
   },
   "dependencies": {
     "arrify": "^1.0.0",
diff --git a/tests/allow-js/with-jsx.jsx b/tests/allow-js/with-jsx.jsx
index ca865ddd4..d182b4b5d 100644
--- a/tests/allow-js/with-jsx.jsx
+++ b/tests/allow-js/with-jsx.jsx
@@ -1,7 +1,11 @@
 export class Foo2 {
-  render () { 
-    return <div /> 
+
+  static sayHi () {
+    return 'hello world'
   }
+
+  render () {
+    return <div />
+  }
+
 }
- 
-Foo2.sayHi = () => 'hello world'