diff --git a/requirements.txt b/requirements.txt
index 767ad5e..6e8cff6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -39,7 +39,7 @@ parso==0.7.0
 pickleshare==0.7.5
 Pillow==6.2.1
 prompt-toolkit==3.0.5
-protobuf==3.6.1
+protobuf==3.15.0
 PyAutoGUI==0.9.50
 pycosat==0.6.3
 pycparser==2.20