diff --git a/_UPDATE/Traffic-Sign-Detection/requirements.txt b/_UPDATE/Traffic-Sign-Detection/requirements.txt
index 994dc29..f281df4 100644
--- a/_UPDATE/Traffic-Sign-Detection/requirements.txt
+++ b/_UPDATE/Traffic-Sign-Detection/requirements.txt
@@ -72,7 +72,7 @@ Pillow==8.0.1
 pooch==1.3.0
 prometheus-client==0.9.0
 prompt-toolkit==3.0.10
-protobuf==3.14.0
+protobuf==3.15.0
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 pycparser==2.20