diff --git a/requirements.txt b/requirements.txt
index 27c7a454..40e0a92f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -48,7 +48,7 @@ packaging==20.4
 Paginator==0.5.1
 pbr==5.4.5
 Pillow==8.2.0
-protobuf==3.12.2
+protobuf==3.18.3
 psutil==5.7.2
 pycodestyle==2.6.0
 pycparser==2.20