diff --git a/docs/install.rst b/docs/install.rst
index 4ac0dbc..68b2c4b 100644
--- a/docs/install.rst
+++ b/docs/install.rst
@@ -51,4 +51,4 @@ Swap has the following dependencies:
 * `bytom-wallet-desktop <https://bytom.io/en/wallet/>`_ - version `1.1.0 <https://github.com/Bytom/bytom/releases/tag/v1.1.0>`_  or greater.
 * `vapor-wallet-desktop <https://github.com/Bytom/vapor/releases/>`_ - version `1.1.7 <https://github.com/Bytom/vapor/releases/tag/v1.1.7>`_  or greater.
 * `pip <https://pypi.org/project/pip/>`_ - To install packages from the Python Package Index and other indexes
-* `python3 <https://www.python.org/downloads/release/python-368/>`_ version 3.6 or greater, python3-dev
+* `python3 <https://www.python.org/downloads/release/python-368/>`_ version 3.6 or greater