diff --git a/.ci/ansible_install.py b/.ci/ansible_install.py
index 906961db..bb659f8a 100755
--- a/.ci/ansible_install.py
+++ b/.ci/ansible_install.py
@@ -17,7 +17,7 @@ batches = [
 ]
 
 batches.extend(
-    ['docker pull %s' % (ci_lib.image_for_distro(distro),)]
+    ['docker pull %s' % (ci_lib.image_for_distro(distro),), 'sleep 1']
     for distro in ci_lib.DISTROS
 )
 
diff --git a/.ci/ci_lib.py b/.ci/ci_lib.py
index f735f6a1..285d7f19 100644
--- a/.ci/ci_lib.py
+++ b/.ci/ci_lib.py
@@ -184,7 +184,11 @@ def get_docker_hostname():
 
 
 def image_for_distro(distro):
-    return 'mitogen/%s-test' % (distro.partition('-')[0],)
+    """Return the container image name or path for a test distro name.
+
+    The returned value is suitable for use with `docker pull`.
+    """
+    return 'public.ecr.aws/n5z0e8q9/%s-test' % (distro.partition('-')[0],)
 
 
 def make_containers(name_prefix='', port_offset=0):
diff --git a/.ci/prep_azure.py b/.ci/prep_azure.py
index e236e3e7..80dbf485 100755
--- a/.ci/prep_azure.py
+++ b/.ci/prep_azure.py
@@ -86,12 +86,4 @@ if need_to_fix_psycopg2:
 
 batches.append(venv_steps)
 
-
-if ci_lib.have_docker():
-    batches.extend(
-        ['docker pull %s' % (ci_lib.image_for_distro(distro),)]
-        for distro in ci_lib.DISTROS
-    )
-
-
 ci_lib.run_batches(batches)