diff --git a/assign3_convolution_nn/requirements.txt b/assign3_convolution_nn/requirements.txt
index 6b24e50..c252055 100644
--- a/assign3_convolution_nn/requirements.txt
+++ b/assign3_convolution_nn/requirements.txt
@@ -47,7 +47,7 @@ pickleshare==0.7.5
 Pillow==6.2.0
 prometheus-client==0.7.1
 prompt-toolkit==2.0.10
-protobuf==3.10.0
+protobuf==3.18.3
 ptyprocess==0.6.0
 py360convert==0.1.0
 pyasn1==0.4.7