diff --git a/poseidon/airflow/test/requirements.txt b/poseidon/airflow/test/requirements.txt
index bd54c8c..9da7fd2 100644
--- a/poseidon/airflow/test/requirements.txt
+++ b/poseidon/airflow/test/requirements.txt
@@ -212,7 +212,7 @@ prison==0.1.3
 prometheus-client==0.8.0
 prompt-toolkit==3.0.7
 proto-plus==1.9.1
-protobuf==3.13.0
+protobuf==3.18.3
 psutil==5.7.2
 psycopg2==2.8.3
 psycopg2-binary==2.8.6