diff --git a/lib/bson/version.rb b/lib/bson/version.rb
index b90056b9e..5a396d690 100644
--- a/lib/bson/version.rb
+++ b/lib/bson/version.rb
@@ -5,5 +5,5 @@ module BSON
   #
   # NOTE: this file is automatically updated via `rake candidate:create`.
   # Manual changes to this file may be overwritten by that rake task.
-  VERSION = '5.1.1'
+  VERSION = '5.2.0'
 end
diff --git a/product.yml b/product.yml
index d864e2df2..bd2073724 100644
--- a/product.yml
+++ b/product.yml
@@ -5,5 +5,5 @@ description: a fully featured [BSON specification](https://bsonspec.org/) implem
 package: bson
 jira: https://jira.mongodb.org/projects/RUBY
 version:
-  number: 5.1.1
+  number: 5.2.0
   file: lib/bson/version.rb