diff --git a/CHANGELOG.md b/CHANGELOG.md
index c9a41943ae..b48684094f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 **See the full release notes on the official documentation website: https://www.elastic.co/docs/release-notes/elasticsearch/clients/ruby**
 
+# 9.1.1
+
+## Elasticsearch API
+
+- Updates source code documentation to latest 9.1 specification.
+- Adds inference.put_amazonsagemaker.
+
 # 9.1.0
 
 ## Gem
diff --git a/elasticsearch-api/lib/elasticsearch/api/version.rb b/elasticsearch-api/lib/elasticsearch/api/version.rb
index cf2f6d16f2..3f8792516a 100644
--- a/elasticsearch-api/lib/elasticsearch/api/version.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/version.rb
@@ -17,7 +17,7 @@
 
 module Elasticsearch
   module API
-    VERSION = '9.1.0'.freeze
-    ES_SPECIFICATION_COMMIT = '93d1b5e58d7f47ac3591df5f085b50f0e472b2eb'.freeze
+    VERSION = '9.1.1'.freeze
+    ES_SPECIFICATION_COMMIT = '569f8b3768762075a47e5fa16a694b41cbc90a34'.freeze
   end
 end
diff --git a/elasticsearch/elasticsearch.gemspec b/elasticsearch/elasticsearch.gemspec
index 5a6ec04555..c53b548015 100644
--- a/elasticsearch/elasticsearch.gemspec
+++ b/elasticsearch/elasticsearch.gemspec
@@ -46,7 +46,7 @@ Gem::Specification.new do |s|
   s.rdoc_options      = ['--charset=UTF-8']
 
   s.required_ruby_version = '>= 2.6' # For compatibility with JRuby 9.3
-  s.add_dependency 'elasticsearch-api', '9.1.0'
+  s.add_dependency 'elasticsearch-api', '9.1.1'
   s.add_dependency 'elastic-transport', '~> 8.3'
 
   s.add_development_dependency 'base64'
diff --git a/elasticsearch/lib/elasticsearch/version.rb b/elasticsearch/lib/elasticsearch/version.rb
index 5df6963a01..0388c3b0f8 100644
--- a/elasticsearch/lib/elasticsearch/version.rb
+++ b/elasticsearch/lib/elasticsearch/version.rb
@@ -16,5 +16,5 @@
 # under the License.
 
 module Elasticsearch
-  VERSION = '9.1.0'.freeze
+  VERSION = '9.1.1'.freeze
 end