diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1af9316f..1862cb50 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Optimizely Ruby SDK Changelog
 
+## 3.8.1
+August 2nd, 2021
+
+### Bug Fixes:
+- Fixed duplicate experiment key issue with multiple feature flags. While trying to get variation from the variationKeyMap, it was unable to find because the latest experimentKey was overriding the previous one. [#282](https://github.com/optimizely/ruby-sdk/pull/282)
+
 ## 3.8.0
 February 16th, 2021
 
diff --git a/lib/optimizely/version.rb b/lib/optimizely/version.rb
index 6e33fb6a..fcff3388 100644
--- a/lib/optimizely/version.rb
+++ b/lib/optimizely/version.rb
@@ -17,5 +17,5 @@
 #
 module Optimizely
   CLIENT_ENGINE = 'ruby-sdk'
-  VERSION = '3.8.0'
+  VERSION = '3.8.1'
 end
diff --git a/spec/project_spec.rb b/spec/project_spec.rb
index 1a66cfdb..14bfb491 100644
--- a/spec/project_spec.rb
+++ b/spec/project_spec.rb
@@ -3625,7 +3625,7 @@ def callback(_args); end
           project_id: '111001',
           revision: '42',
           client_name: 'ruby-sdk',
-          client_version: '3.8.0',
+          client_version: '3.8.1',
           anonymize_ip: false,
           enrich_decisions: true,
           visitors: [{
@@ -3771,7 +3771,7 @@ def callback(_args); end
           project_id: '111001',
           revision: '42',
           client_name: 'ruby-sdk',
-          client_version: '3.8.0',
+          client_version: '3.8.1',
           anonymize_ip: false,
           enrich_decisions: true,
           visitors: [{