diff --git a/Dockerfile b/Dockerfile
index 908e8481eee..3eadc8e7b03 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,10 +11,8 @@ MAINTAINER Paulus Schoutsen <Paulus@PaulusSchoutsen.nl>
 #ENV INSTALL_FFMPEG no
 #ENV INSTALL_LIBCEC no
 #ENV INSTALL_PHANTOMJS no
-#ENV INSTALL_COAP no
 #ENV INSTALL_SSOCR no
 
-
 VOLUME /config
 
 RUN mkdir -p /usr/src/app
@@ -26,10 +24,10 @@ RUN virtualization/Docker/setup_docker_prereqs
 
 # Install hass component dependencies
 COPY requirements_all.txt requirements_all.txt
-# Uninstall enum34 because some depenndecies install it but breaks Python 3.4+.
+# Uninstall enum34 because some dependencies install it but breaks Python 3.4+.
 # See PR #8103 for more info.
 RUN pip3 install --no-cache-dir -r requirements_all.txt && \
-    pip3 install --no-cache-dir mysqlclient psycopg2 uvloop cchardet
+    pip3 install --no-cache-dir mysqlclient psycopg2 uvloop cchardet cython
 
 # Copy source
 COPY . .
diff --git a/homeassistant/components/light/tradfri.py b/homeassistant/components/light/tradfri.py
index f4feb4b7adf..ff9201d49b9 100644
--- a/homeassistant/components/light/tradfri.py
+++ b/homeassistant/components/light/tradfri.py
@@ -40,7 +40,7 @@ def async_setup_platform(hass, config, async_add_devices, discovery_info=None):
 
     devices_command = gateway.get_devices()
     devices_commands = yield from api(devices_command)
-    devices = yield from api(*devices_commands)
+    devices = yield from api(devices_commands)
     lights = [dev for dev in devices if dev.has_light_control]
     if lights:
         async_add_devices(TradfriLight(light, api) for light in lights)
@@ -49,7 +49,7 @@ def async_setup_platform(hass, config, async_add_devices, discovery_info=None):
     if allow_tradfri_groups:
         groups_command = gateway.get_groups()
         groups_commands = yield from api(groups_command)
-        groups = yield from api(*groups_commands)
+        groups = yield from api(groups_commands)
         if groups:
             async_add_devices(TradfriGroup(group, api) for group in groups)
 
diff --git a/homeassistant/components/sensor/tradfri.py b/homeassistant/components/sensor/tradfri.py
index 314c18b7636..88a33cb2f8a 100644
--- a/homeassistant/components/sensor/tradfri.py
+++ b/homeassistant/components/sensor/tradfri.py
@@ -32,7 +32,7 @@ def async_setup_platform(hass, config, async_add_devices, discovery_info=None):
 
     devices_command = gateway.get_devices()
     devices_commands = yield from api(devices_command)
-    all_devices = yield from api(*devices_commands)
+    all_devices = yield from api(devices_commands)
     devices = [dev for dev in all_devices if not dev.has_light_control]
     async_add_devices(TradfriDevice(device, api) for device in devices)
 
diff --git a/homeassistant/components/tradfri.py b/homeassistant/components/tradfri.py
index ef4d7fceed8..a24305c7fd4 100644
--- a/homeassistant/components/tradfri.py
+++ b/homeassistant/components/tradfri.py
@@ -16,7 +16,11 @@ from homeassistant.helpers import discovery
 from homeassistant.const import CONF_HOST, CONF_API_KEY
 from homeassistant.components.discovery import SERVICE_IKEA_TRADFRI
 
-REQUIREMENTS = ['pytradfri==2.2.2']
+REQUIREMENTS = ['pytradfri==3.0',
+                'DTLSSocket==0.1.3',
+                'https://github.com/chrysn/aiocoap/archive/'
+                '3286f48f0b949901c8b5c04c0719dc54ab63d431.zip'
+                '#aiocoap==0.3']
 
 DOMAIN = 'tradfri'
 CONFIG_FILE = 'tradfri.conf'
diff --git a/requirements_all.txt b/requirements_all.txt
index 98abf7b57e8..985d9d539cd 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -18,6 +18,9 @@ certifi>=2017.4.17
 # homeassistant.components.bbb_gpio
 # Adafruit_BBIO==1.0.0
 
+# homeassistant.components.tradfri
+# DTLSSocket==0.1.3
+
 # homeassistant.components.doorbird
 DoorBirdPy==0.0.4
 
@@ -324,6 +327,9 @@ http://github.com/tgaugry/suds-passworddigest-py3/archive/86fc50e39b4d2b89974819
 # homeassistant.components.media_player.braviatv
 https://github.com/aparraga/braviarc/archive/0.3.7.zip#braviarc==0.3.7
 
+# homeassistant.components.tradfri
+# https://github.com/chrysn/aiocoap/archive/3286f48f0b949901c8b5c04c0719dc54ab63d431.zip#aiocoap==0.3
+
 # homeassistant.components.media_player.spotify
 https://github.com/happyleavesaoc/spotipy/archive/544614f4b1d508201d363e84e871f86c90aa26b2.zip#spotipy==2.4.4
 
@@ -843,7 +849,7 @@ pythonegardia==1.0.22
 pytrackr==0.0.5
 
 # homeassistant.components.tradfri
-pytradfri==2.2.2
+pytradfri==3.0
 
 # homeassistant.components.device_tracker.unifi
 pyunifi==2.13
diff --git a/script/gen_requirements_all.py b/script/gen_requirements_all.py
index 314acc4b4f7..ddac210bc26 100755
--- a/script/gen_requirements_all.py
+++ b/script/gen_requirements_all.py
@@ -30,7 +30,9 @@ COMMENT_REQUIREMENTS = (
     'smbus-cffi',
     'envirophat',
     'i2csense',
-    'credstash'
+    'credstash',
+    'aiocoap',  # Temp, will be removed when Python 3.4 is no longer supported.
+    'DTLSSocket'  # Requires cython.
 )
 
 TEST_REQUIREMENTS = (
diff --git a/virtualization/Docker/Dockerfile.dev b/virtualization/Docker/Dockerfile.dev
index 70b1a19f46d..131819a6ca0 100644
--- a/virtualization/Docker/Dockerfile.dev
+++ b/virtualization/Docker/Dockerfile.dev
@@ -26,10 +26,10 @@ RUN virtualization/Docker/setup_docker_prereqs
 # Install hass component dependencies
 COPY requirements_all.txt requirements_all.txt
 
-# Uninstall enum34 because some depenndecies install it but breaks Python 3.4+.
+# Uninstall enum34 because some dependencies install it but breaks Python 3.4+.
 # See PR #8103 for more info.
 RUN pip3 install --no-cache-dir -r requirements_all.txt && \
-    pip3 install --no-cache-dir mysqlclient psycopg2 uvloop cchardet
+    pip3 install --no-cache-dir mysqlclient psycopg2 uvloop cchardet cython
 
 # BEGIN: Development additions
 
diff --git a/virtualization/Docker/scripts/aiocoap b/virtualization/Docker/scripts/aiocoap
deleted file mode 100755
index e234aa31236..00000000000
--- a/virtualization/Docker/scripts/aiocoap
+++ /dev/null
@@ -1,23 +0,0 @@
-#!/bin/sh
-# Installs a modified coap client with support for dtls for use with IKEA Tradfri
-
-# Stop on errors
-set -e
-
-python3 -m pip install cython
-
-cd /usr/src/app/
-mkdir -p build && cd build
-
-git clone --depth 1 https://git.fslab.de/jkonra2m/tinydtls
-cd tinydtls
-autoreconf
-./configure --with-ecc --without-debug
-cd cython
-python3 setup.py install
-
-cd ../..
-git clone https://github.com/chrysn/aiocoap
-cd aiocoap
-git reset --hard 3286f48f0b949901c8b5c04c0719dc54ab63d431
-python3 -m pip install .
diff --git a/virtualization/Docker/setup_docker_prereqs b/virtualization/Docker/setup_docker_prereqs
index 95c8cd3f2e7..bd70af28dce 100755
--- a/virtualization/Docker/setup_docker_prereqs
+++ b/virtualization/Docker/setup_docker_prereqs
@@ -9,7 +9,6 @@ INSTALL_OPENALPR="${INSTALL_OPENALPR:-yes}"
 INSTALL_FFMPEG="${INSTALL_FFMPEG:-yes}"
 INSTALL_LIBCEC="${INSTALL_LIBCEC:-yes}"
 INSTALL_PHANTOMJS="${INSTALL_PHANTOMJS:-yes}"
-INSTALL_COAP="${INSTALL_COAP:-yes}"
 INSTALL_SSOCR="${INSTALL_SSOCR:-yes}"
 
 # Required debian packages for running hass or components
@@ -59,10 +58,6 @@ if [ "$INSTALL_PHANTOMJS" == "yes" ]; then
   virtualization/Docker/scripts/phantomjs
 fi
 
-if [ "$INSTALL_COAP" == "yes" ]; then
-  virtualization/Docker/scripts/aiocoap
-fi
-
 if [ "$INSTALL_SSOCR" == "yes" ]; then
   virtualization/Docker/scripts/ssocr
 fi