diff --git a/requirements.txt b/requirements.txt
index 6bd58a7f..d58c63cc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 numpy==1.18.2
-protobuf==3.6.1
+protobuf==3.11.2
 pandas==1.0.3
 xlrd==1.1.0
 boxcars-py==0.1.3