CHANGELOG.md in open_api-0.3.3 vs CHANGELOG.md in open_api-0.3.4

@@ -1,6 +1,8 @@
 ## Unreleased
 
+## 0.3.4
+* Fix to use array object for "propaties" of Schema
 
 ## 0.3.3
 * Follow nil case of extra fields in Schema
 
 ## 0.3.2