diff --git a/requirements/requirements_dev.txt b/requirements/requirements_dev.txt
index fa73f78c78..8a2e1cee66 100644
--- a/requirements/requirements_dev.txt
+++ b/requirements/requirements_dev.txt
@@ -1,21 +1,21 @@
 django-debug-toolbar==1.11
-django-rest-swagger
-pprofile
+django-rest-swagger==2.2.0
+pprofile==2.0.4
 ipython==5.2.1
-unittest2
-pep8
-flake8
+unittest2==1.1.0
+pep8==1.7.1
+flake8==3.7.9
 pluggy==0.6.0
-pyflakes
+pyflakes==2.2.0
 pytest==3.6.0
-pytest-cov
-pytest-django
+pytest-cov==2.8.1
+pytest-django==3.9.0
 pytest-pythonpath
 pytest-mock==1.11.1
-pytest-timeout
-pytest-xdist<1.28.0
-tox  # for awxkit
-logutils
+pytest-timeout==1.3.4
+pytest-xdist==1.27.0
+tox==3.15.0  # for awxkit
+logutils==0.3.5
 jupyter
 matplotlib
 backports.tempfile  # support in unit tests for py32+ tempfile.TemporaryDirectory