diff --git a/pip_requirements.txt b/pip_requirements.txt
index 8907a95..a57afc7 100644
--- a/pip_requirements.txt
+++ b/pip_requirements.txt
@@ -36,7 +36,7 @@ pickleshare==0.7.5
 Pillow==7.1.2
 pip==20.3.3
 prompt-toolkit==3.0.5
-protobuf==3.12.0
+protobuf==3.15.0
 ptyprocess==0.6.0
 pyasn1==0.4.8
 pyasn1-modules==0.2.8