diff --git a/README.rst b/README.rst
index 46f18622..38ceba11 100644
--- a/README.rst
+++ b/README.rst
@@ -47,6 +47,7 @@ Features
 - Unicode Response Bodies
 - Multipart File Uploads
 - Connection Timeouts
+- Thread-safety
 
 
 Installation
diff --git a/docs/index.rst b/docs/index.rst
index fc8d61a6..a3c98bc5 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -75,6 +75,7 @@ Requests is ready for today's web.
 - Multipart File Uploads
 - Connection Timeouts
 - ``.netrc`` support
+- Thread-safe.
 
 
 User Guide