diff --git a/CHANGELOG.md b/CHANGELOG.md
index 71d9506..701ae6d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Idempotent Request Changelog #
 
+## v0.1.3 ##
+
+* Fix an issue, when concurrent requests sent to an endpoint won't be protected by idempotency until the 1st request is finished
+
 ## v0.1.2 ##
 
 * Fix rack response
diff --git a/lib/version.rb b/lib/version.rb
index 7d917b7..239ce50 100644
--- a/lib/version.rb
+++ b/lib/version.rb
@@ -1,3 +1,3 @@
 module IdempotentRequest
-  VERSION = "0.1.2"
+  VERSION = "0.1.3"
 end