diff --git a/defaults/main.yml b/defaults/main.yml
index 0122d14..77034eb 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -38,7 +38,7 @@ docker_apt_release_channel: stable
 # and is only necessary until Docker officially supports them.
 docker_apt_ansible_distribution: "{{ 'ubuntu' if ansible_distribution in ['Pop!_OS', 'Linux Mint'] else ansible_distribution }}"
 docker_apt_arch: "{{ 'arm64' if ansible_architecture == 'aarch64' else 'amd64' }}"
-docker_apt_repository: "deb [arch={{ docker_apt_arch }}] {{ docker_repo_url }}/{{ docker_apt_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 }}/{{ docker_apt_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"
 docker_apt_gpg_key_checksum: "sha256:1500c1f56fa9e26b9b8f42452a553675796ade0807cdce11975eb98170b3a570"