diff --git a/src/flake8_requirements/modules.py b/src/flake8_requirements/modules.py
index 6673f4a..be57369 100644
--- a/src/flake8_requirements/modules.py
+++ b/src/flake8_requirements/modules.py
@@ -509,6 +509,7 @@
     "mysql_python": ["MySQLdb"],
     "mysqlclient": ["_mysql", "MySQLdb"],
     "pillow": ["PIL"],
+    "protobuf": ["google.protobuf"],
     "py_lru_cache": ["lru"],
     "pyicu": ["icu"],
     "pyjwt": ["jwt"],