diff --git a/Stage 3/requirements.txt b/Stage 3/requirements.txt
index 73457c5..8442f4e 100644
--- a/Stage 3/requirements.txt	
+++ b/Stage 3/requirements.txt	
@@ -4,7 +4,7 @@ googleapis-common-protos==1.51.0
 httplib2==0.18.1
 jws==0.1.3
 oauth2client==3.0.0
-protobuf==3.12.1
+protobuf==3.18.3
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 pycryptodome==3.6.6