diff --git a/pom.xml b/pom.xml
index aa27b7d0..2240a0f8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
     <name>swagger-petstore</name>
     <description>swagger-petstore</description>
     <url>https://github.com/swagger-api/swagger-petstore</url>
-    <version>1.0.27</version>
+    <version>1.0.28-SNAPSHOT</version>
     <scm>
         <connection>scm:git:git@github.com:swagger-api/swagger-petstore.git</connection>
         <developerConnection>scm:git:git@github.com:swagger-api/swagger-petstore.git</developerConnection>
diff --git a/src/main/resources/openapi.yaml b/src/main/resources/openapi.yaml
index 63c15431..f1addcf5 100644
--- a/src/main/resources/openapi.yaml
+++ b/src/main/resources/openapi.yaml
@@ -16,7 +16,7 @@ info:
   license:
     name: Apache 2.0
     url: https://www.apache.org/licenses/LICENSE-2.0.html
-  version: 1.0.27
+  version: 1.0.28-SNAPSHOT
 externalDocs:
   description: Find out more about Swagger
   url: https://swagger.io