diff --git a/nauta-containers/openvino-mo/requirements.txt b/nauta-containers/openvino-mo/requirements.txt
index 3caff32dc..218780434 100644
--- a/nauta-containers/openvino-mo/requirements.txt
+++ b/nauta-containers/openvino-mo/requirements.txt
@@ -17,7 +17,7 @@ networkx==2.2
 numpy==1.16.2
 onnx==1.4.1
 pbr==5.1.3
-protobuf==3.7.0
+protobuf==3.18.3
 pycrypto==2.6.1
 pygobject==3.26.1
 pyxdg==0.25