diff --git a/README.md b/README.md
index 807fe352d..2056dea69 100644
--- a/README.md
+++ b/README.md
@@ -206,6 +206,13 @@ For your information, there is a nice online evaluation platform [pokerwars](htt
 ## More Documents
 For more documentation, please refer to the [Documents](docs/README.md) for general introductions. API documents are available at our [website](http://www.rlcard.org).
 
+## Community
+**Slack**:
+Discuss in our [#rlcard-project](https://join.slack.com/t/rlcard/shared_invite/zt-l4qbarxs-mtBrjBRpYIMq4Re4jvYpWQ) slack channel.
+
+**QQ Group**:
+Join our QQ group 665647450. Password: rlcardqqgroup
+
 ## Contributing
 Contribution to this project is greatly appreciated! Please create an issue for feedbacks/bugs. If you want to contribute codes, please refer to [Contributing Guide](./CONTRIBUTING.md).
 
diff --git a/setup.py b/setup.py
index c18746b8f..d81611b5a 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,8 @@
 
 extras = {
     'torch': ['torch>=1.3', 'matplotlib>=3.0'],
-    'tensorflow': ['tensorflow>=1.14,<2.0', 'matplotlib>=3.0']
+    'tensorflow': ['tensorflow>=1.14,<2.0', 'matplotlib>=3.0'],
+    'tensorflow-gpu': ['tensorflow-gpu>=1.14,<2.0', 'matplotlib>=3.0'],
 }
 
 def _get_version():