diff --git a/CHANGELOG.md b/CHANGELOG.md
index 080b2154c4..0619923324 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,12 @@
 # CHANGELOG
 
-## 6.33.0 - 2019-05-08
+## 6.34.0 - 2019-05-08
+* [#619](https://github.com/stripe/stripe-node/pull/619) Move `generateTestHeaderString` to stripe.webhooks (fixes a bug in 6.33.0)
+
+## 6.33.0 - 2019-05-08 - UNRELEASED
+
+**Important**: This version is non-functional and has been yanked in favor of 6.32.0.
+
 * [#609](https://github.com/stripe/stripe-node/pull/609) Add `generateWebhookHeaderString` to make it easier to mock webhook events
 
 ## 6.32.0 - 2019-05-07
diff --git a/README.md b/README.md
index e3f3551304..8365287d90 100644
--- a/README.md
+++ b/README.md
@@ -225,7 +225,7 @@ const event = stripe.webhooks.constructEvent(
 
 #### Testing Webhook signing
 
-You can use `generateWebhookHeaderString` to mock webhook events that come from Stripe:
+You can use `stripe.webhooks.generateTestHeaderString` to mock webhook events that come from Stripe:
 
 ```js
 const payload = {
diff --git a/VERSION b/VERSION
index 01d19bd262..802173f02a 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-6.33.0
+6.34.0
diff --git a/package.json b/package.json
index 1126dbbe1d..c263457858 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "stripe",
-  "version": "6.33.0",
+  "version": "6.34.0",
   "description": "Stripe API wrapper",
   "keywords": [
     "stripe",