diff --git a/spec/JSON-Schema-Test-Suite b/spec/JSON-Schema-Test-Suite
index 0436e52..002ce0f 160000
--- a/spec/JSON-Schema-Test-Suite
+++ b/spec/JSON-Schema-Test-Suite
@@ -1 +1 @@
-Subproject commit 0436e52e702bf0d67fe8ce50adc7e22623b491b1
+Subproject commit 002ce0fbe070f483429260188b18fe07bd6ec0f0
diff --git a/tests/src/PHPUnit/Ref/FileResolverTest.php b/tests/src/PHPUnit/Ref/FileResolverTest.php
index 24268a3..f584aba 100644
--- a/tests/src/PHPUnit/Ref/FileResolverTest.php
+++ b/tests/src/PHPUnit/Ref/FileResolverTest.php
@@ -71,6 +71,7 @@ public function testFileResolver()
     function testFileReference()
     {
         $pathToExternalSchema = __DIR__ . '/../../../resources/remotes/subSchemas.json';
+        $pathToExternalSchema = $this->preparePath($pathToExternalSchema);
         $schemaData = json_decode(<<<JSON
 {"\$ref": "file://$pathToExternalSchema#/integer"}
 JSON
@@ -86,6 +87,7 @@ function testFileReference()
     function testFileReferenceCapitalized()
     {
         $pathToExternalSchema = __DIR__ . '/../../../resources/remotes/subSchemas.json';
+        $pathToExternalSchema = $this->preparePath($pathToExternalSchema);
         $schemaData = json_decode(<<<JSON
 {"\$ref": "FILE://$pathToExternalSchema#/integer"}
 JSON
@@ -101,6 +103,7 @@ function testFileReferenceCapitalized()
     function testFileReferenceRealpath()
     {
         $pathToExternalSchema = realpath(__DIR__ . '/../../../resources/remotes/subSchemas.json');
+        $pathToExternalSchema = $this->preparePath($pathToExternalSchema);
         $schemaData = json_decode(<<<JSON
 {"\$ref": "file://$pathToExternalSchema#/integer"}
 JSON
@@ -117,6 +120,7 @@ function testFileReferenceRealpathWithSpecialCharacters()
     {
         $pathToExternalSchema = realpath(__DIR__ . '/../../../resources/remotes/#special~characters%directory/subSchemas.json');
         $pathToExternalSchema = str_replace('#special~characters%directory', rawurlencode('#special~characters%directory'), $pathToExternalSchema);
+        $pathToExternalSchema = $this->preparePath($pathToExternalSchema);
         $schemaData = json_decode(<<<JSON
 {"\$ref": "file://$pathToExternalSchema#/integer"}
 JSON
@@ -132,6 +136,7 @@ function testFileReferenceRealpathWithSpecialCharacters()
     function testFileReferenceNoProtocolScheme()
     {
         $pathToExternalSchema = __DIR__ . '/../../../resources/remotes/subSchemas.json';
+        $pathToExternalSchema = $this->preparePath($pathToExternalSchema);
         $schemaData = json_decode(<<<JSON
 {"\$ref": "$pathToExternalSchema#/integer"}
 JSON
@@ -144,4 +149,11 @@ function testFileReferenceNoProtocolScheme()
         $schema->in('abc');
     }
 
+    private function preparePath($path)
+    {
+        if (DIRECTORY_SEPARATOR === '\\') {
+            return str_replace('\\', '/', $path);
+        }
+        return $path;
+    }
 }
\ No newline at end of file