diff --git a/AIFTND/project_4_multi-factor_model/requirements.txt b/AIFTND/project_4_multi-factor_model/requirements.txt
index bffc28c..e786e58 100644
--- a/AIFTND/project_4_multi-factor_model/requirements.txt
+++ b/AIFTND/project_4_multi-factor_model/requirements.txt
@@ -2,7 +2,7 @@ alphalens==0.3.2
 colour==0.1.5
 cvxpy==1.0.3
 cycler==0.10.0
-numpy==1.14.5
+numpy==1.22.0
 pandas==0.18.1
 plotly==2.2.3
 pyparsing==2.2.0