diff --git a/devnet-associate-prep/4.Application Deployment and Security/Interpret contents of a Dockerfile/requirements.txt b/devnet-associate-prep/4.Application Deployment and Security/Interpret contents of a Dockerfile/requirements.txt
index 3887660..c8dffd6 100644
--- a/devnet-associate-prep/4.Application Deployment and Security/Interpret contents of a Dockerfile/requirements.txt	
+++ b/devnet-associate-prep/4.Application Deployment and Security/Interpret contents of a Dockerfile/requirements.txt	
@@ -49,7 +49,7 @@ pickleshare==0.7.5
 Pillow==8.1.1
 prometheus-client==0.8.0
 prompt-toolkit==3.0.8
-protobuf==3.13.0
+protobuf==3.18.3
 psycopg2==2.8.6
 pyarrow==1.0.1
 pycparser==2.20