diff --git a/2019/python-auth-samples/requirements.txt b/2019/python-auth-samples/requirements.txt
index fbe256d..255d8e9 100644
--- a/2019/python-auth-samples/requirements.txt
+++ b/2019/python-auth-samples/requirements.txt
@@ -1,3 +1,3 @@
 google-auth==1.6.3
 pydata-google-auth==0.1.2
-requests==2.21.0
\ No newline at end of file
+requests==2.31.0
\ No newline at end of file