diff --git a/homeassistant/components/switch/tplink.py b/homeassistant/components/switch/tplink.py
index ddb10e74c37..7937a4c77ac 100644
--- a/homeassistant/components/switch/tplink.py
+++ b/homeassistant/components/switch/tplink.py
@@ -13,7 +13,7 @@ from homeassistant.const import (CONF_HOST, CONF_NAME)
 import homeassistant.helpers.config_validation as cv
 
 REQUIREMENTS = ['https://github.com/gadgetreactor/pyHS100/archive/'
-                'master.zip#pyHS100==0.1.2']
+                'ef85f939fd5b07064a0f34dfa673fa7d6140bd95.zip#pyHS100==0.1.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/requirements_all.txt b/requirements_all.txt
index a8ffdb6a160..dc3467ed65f 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -171,7 +171,7 @@ https://github.com/danieljkemp/onkyo-eiscp/archive/python3.zip#onkyo-eiscp==0.9.
 # https://github.com/deisi/fritzconnection/archive/b5c14515e1c8e2652b06b6316a7f3913df942841.zip#fritzconnection==0.4.6
 
 # homeassistant.components.switch.tplink
-https://github.com/gadgetreactor/pyHS100/archive/master.zip#pyHS100==0.1.2
+https://github.com/gadgetreactor/pyHS100/archive/ef85f939fd5b07064a0f34dfa673fa7d6140bd95.zip#pyHS100==0.1.2
 
 # homeassistant.components.netatmo
 https://github.com/jabesq/netatmo-api-python/archive/v0.5.0.zip#lnetatmo==0.5.0