diff --git a/README.md b/README.md
index 2f6010a..1a2f7da 100644
--- a/README.md
+++ b/README.md
@@ -105,12 +105,12 @@ Also see [Troubleshooting]
 
 
 [1.4.x]:           https://github.com/clowwindy/shadowsocks/tree/1.4
-[Build Status]:    http://img.shields.io/travis/clowwindy/shadowsocks/master.svg?style=flat
+[Build Status]:    https://img.shields.io/travis/clowwindy/shadowsocks/master.svg?style=flat
 [Chinese Readme]:  https://github.com/clowwindy/shadowsocks/wiki/Shadowsocks-%E4%BD%BF%E7%94%A8%E8%AF%B4%E6%98%8E
 [GUI client]:      https://github.com/clowwindy/shadowsocks/wiki/Ports-and-Clients
 [Issue Tracker]:   https://github.com/clowwindy/shadowsocks/issues?state=open
 [PyPI]:            https://pypi.python.org/pypi/shadowsocks
-[PyPI version]:    http://img.shields.io/pypi/v/shadowsocks.svg?style=flat
+[PyPI version]:    https://img.shields.io/pypi/v/shadowsocks.svg?style=flat
 [Supervisor]:      https://github.com/clowwindy/shadowsocks/wiki/Configure-Shadowsocks-with-Supervisor
 [TCP_FASTOPEN]:    https://github.com/clowwindy/shadowsocks/wiki/TCP-Fast-Open
 [Travis CI]:       https://travis-ci.org/clowwindy/shadowsocks
diff --git a/README.rst b/README.rst
index 9a263fa..77edba2 100644
--- a/README.rst
+++ b/README.rst
@@ -136,7 +136,7 @@ Mailing list: http://groups.google.com/group/shadowsocks
 Also see
 `Troubleshooting <https://github.com/clowwindy/shadowsocks/wiki/Troubleshooting>`__
 
-.. |PyPI version| image:: http://img.shields.io/pypi/v/shadowsocks.svg?style=flat
+.. |PyPI version| image:: https://img.shields.io/pypi/v/shadowsocks.svg?style=flat
    :target: https://pypi.python.org/pypi/shadowsocks
-.. |Build Status| image:: http://img.shields.io/travis/clowwindy/shadowsocks/master.svg?style=flat
+.. |Build Status| image:: https://img.shields.io/travis/clowwindy/shadowsocks/master.svg?style=flat
    :target: https://travis-ci.org/clowwindy/shadowsocks