diff --git a/modules/swagger-parser/src/test/java/io/swagger/parser/SwaggerReaderTest.java b/modules/swagger-parser/src/test/java/io/swagger/parser/SwaggerReaderTest.java
index f3af580c0b..6d6592f6f7 100644
--- a/modules/swagger-parser/src/test/java/io/swagger/parser/SwaggerReaderTest.java
+++ b/modules/swagger-parser/src/test/java/io/swagger/parser/SwaggerReaderTest.java
@@ -266,8 +266,7 @@ public void testIssue205() {
         assertNotNull(definition);
         assertTrue(definition instanceof ModelImpl);
     }
-
-
+    
     @Test
     public void testIssue136() {
         String spec =
@@ -282,7 +281,7 @@ public void testIssue136() {
             "        200:\n" +
             "          description: 'the pet'\n" +
             "          schema:\n" +
-            "            $ref: 'http://petstore.swagger.io/v2/swagger.json#/definitions/Pet'";
+            "            $ref: 'https://petstore.swagger.io/v2/swagger.json#/definitions/Pet'";
 
         SwaggerDeserializationResult result = new SwaggerParser().readWithInfo(spec);
 
diff --git a/modules/swagger-parser/src/test/resources/nested-file-references/issue-421.yaml b/modules/swagger-parser/src/test/resources/nested-file-references/issue-421.yaml
index ccf0cbde16..c67301a01d 100644
--- a/modules/swagger-parser/src/test/resources/nested-file-references/issue-421.yaml
+++ b/modules/swagger-parser/src/test/resources/nested-file-references/issue-421.yaml
@@ -66,12 +66,12 @@ paths:
           description: order placed for purchasing the pet
           required: true
           schema:
-            $ref: 'http://petstore.swagger.io/v2/swagger.json#/definitions/Order'
+            $ref: 'https://petstore.swagger.io/v2/swagger.json#/definitions/Order'
       responses:
         '200':
           description: successful operation
           schema:
-            $ref: 'http://petstore.swagger.io/v2/swagger.json#/definitions/Order'
+            $ref: 'https://petstore.swagger.io/v2/swagger.json#/definitions/Order'
         '400':
           description: Invalid Order