diff --git a/requirements.txt b/requirements.txt
index 0271eea..c8b99d2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,7 +16,7 @@ Keras-Applications==1.0.8
 Keras-Preprocessing==1.1.0
 oauth2client==4.1.3
 pandas==1.0.0
-protobuf==3.12.0
+protobuf==3.18.3
 SQLAlchemy==1.3.13
 psycopg2==2.8.4
 qtconsole==4.6.0
diff --git a/setup.py b/setup.py
index d1b23bf..50b20ac 100644
--- a/setup.py
+++ b/setup.py
@@ -50,7 +50,7 @@
         'Keras-Preprocessing==1.1.0',
         'oauth2client==4.1.3',
         'pandas==1.0.0',
-        'protobuf==3.12.0',
+        'protobuf==3.18.3',
         'SQLAlchemy==1.3.13',
         'psycopg2==2.8.4',
         'qtconsole==4.6.0',