diff --git a/requirements.txt b/requirements.txt
index 64f8594..2f74ef1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -35,7 +35,7 @@ pandas==0.24.1
 Pillow==5.4.1
 pluggy==0.8.1
 progressbar2==3.39.2
-protobuf==3.6.1
+protobuf==3.18.3
 py==1.8.0
 pyglet==1.3.2
 PyOpenGL==3.1.0