diff --git a/defaults/main.yml b/defaults/main.yml
index 870a94c..8a69b02 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -35,7 +35,7 @@ docker_repo_url: https://download.docker.com/linux
 # Used only for Debian/Ubuntu. Switch 'stable' to 'nightly' if needed.
 docker_apt_release_channel: stable
 docker_apt_arch: "{{ 'arm64' if ansible_architecture == 'aarch64' else 'amd64' }}"
-docker_apt_repository: "deb [arch={{ docker_apt_arch }}] {{ docker_repo_url }}/{{ ansible_distribution | lower }} {{ ansible_distribution_release }} {{ docker_apt_release_channel }}"
+docker_apt_repository: "deb [arch={{ docker_apt_arch }} signed-by=/etc/apt/trusted.gpg.d/docker.asc] {{ docker_repo_url }}/{{ ansible_distribution | lower }} {{ ansible_distribution_release }} {{ docker_apt_release_channel }}"
 docker_apt_ignore_key_error: true
 docker_apt_gpg_key: "{{ docker_repo_url }}/{{ ansible_distribution | lower }}/gpg"