diff --git a/requirements.txt b/requirements.txt
index fae05b6..6ba6fac 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,7 +14,7 @@ keyring==10.6.0
 keyrings.alt==3.0
 MarkupSafe==1.1.1
 mysql-connector-python==8.0.18
-protobuf==3.10.0
+protobuf==3.15.0
 pycrypto==2.6.1
 pygobject==3.26.1
 PyMySQL==0.9.3