diff --git a/lower-constraints.txt b/lower-constraints.txt
index f6fdb2d..ec93e47 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -12,7 +12,7 @@ contextlib2==0.5.5
 coverage==4.0
 cryptography==2.1.4
 debtcollector==1.19.0
-decorator==4.2.1
+decorator==4.4.1
 deprecation==2.0
 django-appconf==1.0.2
 django-babel==0.6.2
@@ -25,9 +25,8 @@ dulwich==0.19.0
 extras==1.0.0
 fasteners==0.14.1
 fixtures==3.0.0
-flake8==2.5.5
 futurist==1.6.0
-hacking==1.1.0
+hacking==3.0.1
 horizon==17.1.0
 idna==2.6
 imagesize==1.0.0
@@ -37,10 +36,10 @@ jmespath==0.9.3
 jsonpatch==1.21
 jsonpointer==2.0
 jsonschema==2.6.0
-keystoneauth1==3.4.0
+keystoneauth1==3.18.0
 linecache2==1.0.0
 MarkupSafe==1.0
-mccabe==0.2.1
+mccabe==0.6.1
 monotonic==1.4
 msgpack==0.5.6
 munch==2.2.0
@@ -49,7 +48,7 @@ netifaces==0.10.6
 nodeenv==0.9.4
 openstacksdk==0.12.0
 os-client-config==1.29.0
-os-service-types==1.2.0
+os-service-types==1.7.0
 osc-lib==1.10.0
 oslo.concurrency==3.26.0
 oslo.config==5.2.0
@@ -66,7 +65,7 @@ pep8==1.5.7
 Pint==0.8.1
 prettytable==0.7.2
 pycparser==2.18
-pyflakes==0.8.1
+pyflakes==2.1.0
 Pygments==2.2.0
 pyinotify==0.9.6
 pymongo==3.6.1
diff --git a/package.json b/package.json
index d5424a5..8fd58a9 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "eslint-plugin-angular": "1.0.1",
     "jasmine-core": "2.4.1",
     "karma": "1.1.2",
-    "karma-chrome-launcher": "1.0.1",
+    "karma-firefox-launcher": "2.1.0",
     "karma-cli": "1.0.1",
     "karma-coverage": "1.1.1",
     "karma-jasmine": "1.0.2",
diff --git a/test-requirements.txt b/test-requirements.txt
index c9ecee4..89db7ce 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -7,11 +7,8 @@
 # be installed in a specific order.
 #
 # Hacking should appear first in case something else depends on pep8
-hacking>=1.1.0,<1.2.0 # Apache-2.0
-# remove this pyflakes from here once you bump the
-# hacking to 3.2.0 or above. hacking 3.2.0 takes
-# care of pyflakes version compatibilty.
-pyflakes>=2.1.1
-#
+hacking>=3.0.1,<3.1.0 # Apache-2.0
+
+
 coverage!=4.4,>=4.0 # Apache-2.0
 testtools>=2.2.0 # MIT
diff --git a/tools/install_venv.py b/tools/install_venv.py
index 88b1963..c32c9f6 100644
--- a/tools/install_venv.py
+++ b/tools/install_venv.py
@@ -67,5 +67,6 @@ def main(argv):
     install.install_dependencies()
     print_help(venv, root)
 
+
 if __name__ == '__main__':
     main(sys.argv)
diff --git a/tox.ini b/tox.ini
index 680e1e8..0e416f6 100644
--- a/tox.ini
+++ b/tox.ini
@@ -33,7 +33,7 @@ commands = {posargs}
 commands = flake8 {posargs}
 
 [flake8]
-ignore = F405
+ignore = F405,W504
 exclude = .venv,.git,.tox,dist,*lib/python*,*egg,build,panel_template,dash_template,local_settings.py,*/local/*,*/test/test_plugins/*,.ropeproject,node_modules
 max-complexity = 20
 
diff --git a/zaqar_ui/karma.conf.js b/zaqar_ui/karma.conf.js
index 1846946..b4174017 100644
--- a/zaqar_ui/karma.conf.js
+++ b/zaqar_ui/karma.conf.js
@@ -124,14 +124,14 @@ module.exports = function (config) {
 
     frameworks: ['jasmine'],
 
-    browsers: ['Chrome'],
+    browsers: ['Firefox'],
 
     browserNoActivityTimeout: 60000,
 
     reporters: ['progress', 'coverage', 'threshold'],
 
     plugins: [
-      'karma-chrome-launcher',
+      'karma-firefox-launcher',
       'karma-jasmine',
       'karma-ng-html2js-preprocessor',
       'karma-coverage',