diff --git a/requirements.txt b/requirements.txt
index 4e2bad2..f465d9e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -31,7 +31,7 @@ opencv-python==4.5.3.56
 opt-einsum==3.3.0
 packaging==21.3
 Pillow==9.0.1
-protobuf==3.19.1
+protobuf==3.19.5
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 pydot==1.4.2