diff --git a/requirements.lock.txt b/requirements.lock.txt
index defd05c..c95d15d 100644
--- a/requirements.lock.txt
+++ b/requirements.lock.txt
@@ -32,7 +32,7 @@ oauthlib==3.1.0
 packaging==20.4
 pandas==1.0.5
 Pillow==7.2.0
-protobuf==3.12.2
+protobuf==3.18.3
 pyarrow==0.17.1
 pyasn1==0.4.8
 pyasn1-modules==0.2.8