diff --git a/VERSION b/VERSION
index 2bf50aaf..004af722 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-8.3.0
+8.4.0-beta.1
diff --git a/lib/stripe/version.rb b/lib/stripe/version.rb
index 73fc3fda..c7e92506 100644
--- a/lib/stripe/version.rb
+++ b/lib/stripe/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module Stripe
-  VERSION = "8.3.0"
+  VERSION = "8.4.0-beta.1"
 end