diff --git a/libvirt-ansible-python/requirements.txt b/libvirt-ansible-python/requirements.txt
index 0d3f63c..baeee94 100644
--- a/libvirt-ansible-python/requirements.txt
+++ b/libvirt-ansible-python/requirements.txt
@@ -5,3 +5,4 @@ pyyaml>=6.0
 Jinja2>=3.1.2
 dotmap>=1.3.30
 passlib>=1.7.4
+protobuf==3.20.1