diff --git a/2019/5-jupyter-azure-cognitive-services-face/requirements.txt b/2019/5-jupyter-azure-cognitive-services-face/requirements.txt
index 86b682f..9b5cc47 100644
--- a/2019/5-jupyter-azure-cognitive-services-face/requirements.txt
+++ b/2019/5-jupyter-azure-cognitive-services-face/requirements.txt
@@ -52,7 +52,7 @@ pytest==4.4.1
 python-dateutil==2.8.0
 pyzmq==18.0.1
 qtconsole==4.4.3
-requests==2.21.0
+requests==2.31.0
 Send2Trash==1.5.0
 six==1.12.0
 terminado==0.8.2
diff --git a/2019/requirements.txt b/2019/requirements.txt
index 7bc9dd6..10aa310 100644
--- a/2019/requirements.txt
+++ b/2019/requirements.txt
@@ -25,7 +25,7 @@ pycparser==2.19
 PyJWT==1.7.1
 pylint==2.3.1
 python-dateutil==2.8.0
-requests==2.21.0
+requests==2.31.0
 requests-oauthlib==1.2.0
 six==1.12.0
 typed-ast==1.3.4