diff --git a/test/specs.js b/test/specs.js
index 9d2e4b8..b2f600c 100644
--- a/test/specs.js
+++ b/test/specs.js
@@ -86,7 +86,7 @@ describe('Convert SVG', function () {
 
     it('convert a svg with an image', function (done) {
         this.timeout(5000);
-        var imageUrl = 'https://zh.wikipedia.org/static/images/project-logos/zhwiki-hans.png';
+        var imageUrl = 'file://'+__dirname+'/zhwiki-hans.png';
         Image64.encode(imageUrl, {}, function (err, base64) {
             var svgString = util.format('<svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="540" height="258" ' +
                 'viewBox="0 0 540 258"><image width="540" height="258" x="0" y="0" href="%s"></image></svg>', 'data:image/png;base64,' + base64.toString('base64'));
diff --git a/test/zhwiki-hans.png b/test/zhwiki-hans.png
new file mode 100644
index 0000000..656c053
Binary files /dev/null and b/test/zhwiki-hans.png differ