diff --git a/dev-requirements.txt b/dev-requirements.txt
index 502ab4c..6ea0726 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -1,8 +1,8 @@
 pytest
 pytest-cov
 mypy
-flake8 >= 3.3.0
-pep8-naming >= 0.4.1
-flake8-quotes >= 0.8.1
-flake8-import-order >= 0.9.0
+flake8==3.7.8
+pep8-naming==0.8.2
+flake8-quotes==2.1.0
+flake8-import-order==0.18.1
 Sphinx
diff --git a/requirements.txt b/requirements.txt
index 6b76e04..52dfc70 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
-pynetbox >= 4.0
-netaddr >= 0.7
-netifaces >= 0.10
+pynetbox==4.0.6
+netaddr==0.7.19
+netifaces==0.10.9