diff --git a/dev-requirements.txt b/dev-requirements.txt
new file mode 100644
index 0000000..b1f3d50
--- /dev/null
+++ b/dev-requirements.txt
@@ -0,0 +1,3 @@
+mock==3.0.5
+pytest==5.0.1
+pytest-cov==2.7.1
\ No newline at end of file