diff --git a/homeassistant/components/notify/slack.py b/homeassistant/components/notify/slack.py
index 48c1578efe3f72..f010244795a5c5 100644
--- a/homeassistant/components/notify/slack.py
+++ b/homeassistant/components/notify/slack.py
@@ -10,7 +10,7 @@
 from homeassistant.const import CONF_API_KEY
 from homeassistant.helpers import validate_config
 
-REQUIREMENTS = ['slacker==0.6.8']
+REQUIREMENTS = ['slacker==0.9.10']
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/requirements_all.txt b/requirements_all.txt
index 1598250085ae93..8c18a6f70c5306 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -285,7 +285,7 @@ scsgate==0.1.0
 sendgrid>=1.6.0,<1.7.0
 
 # homeassistant.components.notify.slack
-slacker==0.6.8
+slacker==0.9.10
 
 # homeassistant.components.notify.xmpp
 sleekxmpp==1.3.1