diff --git a/requirements_dev.txt b/requirements_dev.txt
index 3e8f9ed..2ff2ce3 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,2 +1,11 @@
+astroid==2.4.2
 coverage==5.2.1
+isort==5.4.2
+lazy-object-proxy==1.4.3
+mccabe==0.6.1
+pylint==2.6.0
 redis==3.5.3
+six==1.15.0
+toml==0.10.1
+typed-ast==1.4.1
+wrapt==1.12.1