diff --git a/test-driven-development/requirements.txt b/test-driven-development/requirements.txt
index 3f1e5f8..6aa8667 100644
--- a/test-driven-development/requirements.txt
+++ b/test-driven-development/requirements.txt
@@ -3,7 +3,7 @@ attrs==19.1.0
 coverage==4.5.3
 hypothesis==4.27.0
 importlib-metadata==0.18
-joblib==0.13.2
+joblib==1.2.0
 more-itertools==7.1.0
 numpy==1.16.4
 packaging==19.0