diff --git a/tools/requirements.txt b/tools/requirements.txt
index d5cfe93c..71636f4e 100644
--- a/tools/requirements.txt
+++ b/tools/requirements.txt
@@ -11,7 +11,7 @@ idna==2.8
 jmespath==0.10.0
 numpy==1.18.1
 paramiko==2.7.1
-protobuf==3.14.0
+protobuf==3.18.3
 pycparser==2.19
 PyNaCl==1.3.0
 python-dateutil==2.8.1