diff --git a/dev-requirements.txt b/dev-requirements.txt
index e86d1ed..dc232cf 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -1,7 +1,7 @@
 requests==1.0.0
-setuptools>=40.8.0
-wheel>=0.40.0
-twine>=4.0.0
+setuptools==40.8.0
+wheel==0.40.0
+twine==4.0.0
 vulture>=1.0
 bandit>=1.5.1
 pydocstyle>=3.0.0