diff --git a/requirements.txt b/requirements.txt
index 687f25a..97e7536 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -32,7 +32,7 @@ oauthlib==3.1.0
 opencv-python==4.2.0.32
 opt-einsum==3.2.1
 Pillow==8.1.1
-protobuf==3.12.2
+protobuf==3.18.3
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 pylint==2.4.4