diff --git a/README.md b/README.md
index e5785f36..7fd943e2 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ We welcome suggestion both the code and the API design.
 To make changes to the design itself, take a look at https://github.com/swagger-api/swagger-petstore/blob/master/src/main/resources/openapi.yaml.
 
 This is a java project to build a stand-alone server which implements the OpenAPI 3 Spec.  You can find out
-more about both the spec and the framework at http://swagger.io.
+more about both the spec and the framework at https://swagger.io.
 
 This sample is based on [swagger-inflector](https://github.com/swagger-api/swagger-inflector), and provides an example of swagger / OpenAPI 3 petstore.