diff --git a/requirements.txt b/requirements.txt
index b10e2fd..a4b0c38 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,5 +5,5 @@ setuptools==38.4.0
 tinytag==0.18.0
 grpcio==1.8.4
 grpcio-tools==1.8.4
-protobuf==3.15.0
+protobuf==3.18.3
 mutagen==1.40.0
diff --git a/setup.py b/setup.py
index f119bf4..c40a948 100644
--- a/setup.py
+++ b/setup.py
@@ -30,7 +30,7 @@
         'tinytag==0.18.0',
         'grpcio==1.8.4',
         'grpcio-tools==1.8.4',
-        'protobuf==3.15.0',
+        'protobuf==3.18.3',
         'mutagen==1.40.0',
     ],
     'packages': find_packages(exclude=['docs', 'tests']),