diff --git a/CHANGELOG.md b/CHANGELOG.md
index e7a2f7f..fd4c1a1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,6 @@
 ## Change Log
+### 4.1.1 (11/05/2019)
+- Improve CF challenge security by nullifying VM context's prototype chain.
 
 ### v4.1.0 (02/05/2019)
 - Backport TLSv1.3 secure ciphers to potentially avoid getting a CAPTCHA.
diff --git a/package.json b/package.json
index c5a99c4..9bbfff2 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "cloudscraper",
-  "version": "4.1.0",
+  "version": "4.1.1",
   "description": "Bypasses cloudflare's anti-ddos page",
   "main": "index.js",
   "engines": {