diff --git a/Activity01/requirements.txt b/Activity01/requirements.txt
index 148e72e..362503f 100644
--- a/Activity01/requirements.txt
+++ b/Activity01/requirements.txt
@@ -61,7 +61,7 @@ pexpect==4.7.0
 pickleshare==0.7.5
 prometheus-client==0.7.1
 prompt-toolkit==2.0.10
-protobuf==3.10.0
+protobuf==3.18.3
 ptyprocess==0.6.0
 pyasn1==0.4.7
 pyasn1-modules==0.2.7