diff --git a/AUTHORS.md b/AUTHORS.md
index cfcc930..a92d22f 100644
--- a/AUTHORS.md
+++ b/AUTHORS.md
@@ -6,3 +6,6 @@
 
 * **v-hunt** <https://github.com/v-hunt>
 * **pprmint** <https://github.com/pprmint>
+* **v-hunt** <https://github.com/v-hunt>
+* **arayate** <https://github.com/arayate>
+* **berkerboy** <https://github.com/berkerboy>
diff --git a/README.md b/README.md
index 50657a4..a67200a 100644
--- a/README.md
+++ b/README.md
@@ -99,6 +99,17 @@ options = {
 imgkit.from_url('http://google.com', 'out.png', options=options)
 ```
 
+At some headless servers, perhaps you need to install **xvfb**:
+
+``` bash
+# at ubuntu server, etc.
+sudo apt-get install xvfb
+# at centos server, etc.
+yum install xorg-x11-server-Xvfb
+```
+
+Then use **IMGKit** with option **xvfb**: `{"xvfb": ""}`.
+
 By default, IMGKit will show all `wkhtmltoimage` output. If you don't want it, you need to pass `quiet` option:
 
 
diff --git a/imgkit/__init__.py b/imgkit/__init__.py
index 513ca1c..5f44d5c 100644
--- a/imgkit/__init__.py
+++ b/imgkit/__init__.py
@@ -5,8 +5,8 @@
 
 __author__ = 'jarrekk'
 __contact__ = 'me@jarrekk.com'
-__version__ = '0.1.6'
-__homepage__ = 'http://github.com/jarrekk/imgkit'
+__version__ = '0.1.7'
+__homepage__ = 'https://github.com/jarrekk/imgkit'
 __license__ = 'MIT'
 
 from .imgkit import IMGKit