diff --git a/composer/airflow_1_samples/requirements-test.txt b/composer/airflow_1_samples/requirements-test.txt
index c09fc77b516..5aefcaa0629 100644
--- a/composer/airflow_1_samples/requirements-test.txt
+++ b/composer/airflow_1_samples/requirements-test.txt
@@ -1,2 +1,3 @@
 pytest==8.2.0
 cloud-composer-dag-test-utils==0.0.1
+idna>=3.7 # not directly required, pinned by Snyk to avoid a vulnerability