diff --git a/lib/bson/version.rb b/lib/bson/version.rb
index a6314485e..b90056b9e 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 = '5.1.0'
+  VERSION = '5.1.1'
 end
diff --git a/product.yml b/product.yml
index c69b9c651..d864e2df2 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: 5.1.0
+  number: 5.1.1
   file: lib/bson/version.rb
diff --git a/spec/shared b/spec/shared
index 9e78cddc7..6b1158f69 160000
--- a/spec/shared
+++ b/spec/shared
@@ -1 +1 @@
-Subproject commit 9e78cddc798461f04a2cf4f5aea88ddd35110c3e
+Subproject commit 6b1158f69f7a23345259223bc305393b86e9ab3e