diff --git a/IntroToCloudComputing/CloudFunctionForPubsub/requirements.txt b/IntroToCloudComputing/CloudFunctionForPubsub/requirements.txt
index a18ab50..40b1dc6 100644
--- a/IntroToCloudComputing/CloudFunctionForPubsub/requirements.txt
+++ b/IntroToCloudComputing/CloudFunctionForPubsub/requirements.txt
@@ -13,7 +13,7 @@ pyasn1==0.4.7
 pyasn1-modules==0.2.7
 pytz==2019.3
 requests==2.22.0
-rsa==4.0
+rsa==4.7
 six==1.13.0
 urllib3==1.25.7
 wincertstore==0.2