diff --git a/requirements.txt b/requirements.txt
index f4fd586..ba720be 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -34,7 +34,7 @@ numpy==1.19.5
 oauthlib==3.1.0
 Pillow==8.0.1
 pprintpp==0.4.0
-protobuf==3.14.0
+protobuf==3.18.3
 psutil==5.7.3
 pyasn1==0.4.8
 pyasn1-modules==0.2.8