diff --git a/requirements.txt b/requirements.txt
index 0bac7ae..846dbef 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,7 +20,7 @@ numpy==1.19.3
 oauthlib==3.1.0
 pandas==1.1.3
 Pillow==8.0.1
-protobuf==3.13.0
+protobuf==3.18.3
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 pycparser==2.20