diff --git a/requirements.txt b/requirements.txt
index 8c3eb82..3b829bf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 pandas==0.25.1
 Pillow==9.0.1
-protobuf==3.15.0
+protobuf==3.18.3
 scikit-learn==0.21.2
 torch==1.1.0
 torchfile==0.1.0