diff --git a/requirements.txt b/requirements.txt
index f10fbdd..12c5add 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,4 +3,4 @@ numpy==1.19.1
 pandas==0.24.2
 opencv_python==4.4.0.42
 Pillow==8.1.1
-protobuf==3.13.0
+protobuf==3.18.3