diff --git a/docker/requirements-diode-netbox-plugin.txt b/docker/requirements-diode-netbox-plugin.txt
index 6ff9b62..7ced5cf 100644
--- a/docker/requirements-diode-netbox-plugin.txt
+++ b/docker/requirements-diode-netbox-plugin.txt
@@ -2,4 +2,5 @@ Brotli==1.1.0
 certifi==2024.7.4
 coverage==7.6.0
 grpcio==1.62.1
+protobuf==5.28.1
 pytest==8.0.2
diff --git a/pyproject.toml b/pyproject.toml
index b30e173..35f4dea 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -28,6 +28,7 @@ dependencies = [
     "Brotli==1.1.0",
     "certifi==2024.7.4",
     "grpcio==1.62.1",
+    "protobuf==5.28.1",
 ]
 
 [project.optional-dependencies]