diff --git a/requirements.txt b/requirements.txt
index a5219da05634a56bc7b5a6069ed510a1a747369e..03f63615e302e38fc4e33b325ebde41d9b2666c8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
 pytest
+pytest-cov
 Sphinx
 sphinx_rtd_theme
\ No newline at end of file