diff --git a/requirements.txt b/requirements.txt
index 7894e02..4bffe1b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -23,7 +23,7 @@ numpy==1.19.0
 oauthlib==3.1.0
 opencv-contrib-python==4.3.0.36
 opt-einsum==3.2.1
-protobuf==3.12.2
+protobuf==3.15.0
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 PyYAML==5.3.1