diff --git a/requirements.txt b/requirements.txt
index 2271cbb..7fe7f10 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -59,7 +59,7 @@ pickleshare==0.7.5
 Pillow==6.1.0
 prometheus-client==0.7.1
 prompt-toolkit==2.0.9
-protobuf==3.8.0
+protobuf==3.15.0
 psutil==5.6.3
 ptyprocess==0.6.0
 Pygments==2.4.2