diff --git a/.ansible-lint b/.ansible-lint
index 11de5ffc..4d7cc159 100644
--- a/.ansible-lint
+++ b/.ansible-lint
@@ -4,5 +4,6 @@ skip_list:
   - name[casing] # Upper letter rule
   - name[template] # jinja rule is not valid
   - package-latest # Unfortunately I do want update to latest without version specification
+  - schema[vars] # macos detect wrong error on defaults
   - yaml[indentation]
   - yaml[line-length] # don't think line-length is important
diff --git a/envs/include_role/ubuntu/install_docker.yaml b/envs/include_role/ubuntu/install_docker.yaml
index fb9c3e5c..4283ef13 100644
--- a/envs/include_role/ubuntu/install_docker.yaml
+++ b/envs/include_role/ubuntu/install_docker.yaml
@@ -1,5 +1,14 @@
 # docker
 # see: https://docs.docker.com/engine/install/ubuntu/
+
+# workaround for "Conflicting values set for option Signed-By"
+# see: https://github.com/docker/for-linux/issues/1349
+- name: "docker - delete conflicting package file"
+  become: true
+  ansible.builtin.file:
+    path: "/etc/apt/sources.list.d/download_docker_com_linux_ubuntu.list"
+    state: absent
+
 - name: "docker - make sure install prerequisites"
   become: true
   ansible.builtin.apt: