diff --git a/3 - Smart Beta and Portfolio Optimization/requirements.txt b/3 - Smart Beta and Portfolio Optimization/requirements.txt
index 7111522..6e605e8 100644
--- a/3 - Smart Beta and Portfolio Optimization/requirements.txt	
+++ b/3 - Smart Beta and Portfolio Optimization/requirements.txt	
@@ -7,7 +7,7 @@ plotly==2.2.3
 pyparsing==2.2.0
 python-dateutil==2.6.1
 pytz==2017.3
-requests==2.20.0
+requests==2.31.0
 scipy==1.0.0
 scikit-learn==0.19.1
 six==1.11.0