diff --git a/.circleci/config.yml b/.circleci/config.yml
index 7fa849f..1a96656 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -37,7 +37,7 @@ jobs:
             REGISTRY: QUAY
           command: |
             if [ "${CIRCLE_BRANCH}" == "master" ]; then
-              bash .travis/deploy.sh
+              python .travis/deploy.py
             fi
 
 workflows:
diff --git a/.travis/deploy.py b/.travis/deploy.py
new file mode 100644
index 0000000..8958536
--- /dev/null
+++ b/.travis/deploy.py
@@ -0,0 +1,76 @@
+#! /usr/bin/env python
+
+import os
+import subprocess
+
+#: Default user, which owns the repositories.
+USER = 'maxking'
+
+
+def tag(original, final):
+    """Tag the source image with final tag."""
+    try:
+        print('Tagging {0} to {1}'.format(original, final))
+        subprocess.run(
+            ['docker', 'tag', original, final],
+            check=True,
+        )
+    except subprocess.CalledProcessError:
+        print('Failed to tag {0}'.format(original))
+
+
+def login(url):
+    """Login to the registry."""
+    if 'quay' in url.lower():
+        password = os.environ['QUAY_PASSWORD']
+    elif 'docker' in url.lower():
+        password = os.environ['DOCKER_PASSWORD']
+    else:
+        print('Password not found for {0}'.format(url))
+        return None
+    print('Logging in to {0}'.format(url))
+    subprocess.run(
+        ['docker', 'login', '-u', USER, '-p', password, url],
+        check=True
+    )
+    print('Logged in to {0}'.format(url))
+
+
+def push(image):
+    """Push all the images."""
+    print('Pushing {}'.format(image))
+    subprocess.run(['docker', 'push', image], check=True)
+
+
+def tag_and_push(image_names, url, img_tag):
+    """Given the URL to repository, tag and push the images."""
+    # Tag recently built images.
+    source, final = image_names
+    tag(source, final)
+    # Finall, push all the images.
+    push(final)
+
+
+if __name__ == '__main__':
+
+    img_tag = 'rolling'
+
+    prev_failed = False
+
+    for url in ('quay.io', 'docker.io'):
+
+        core = ('maxking/mailman-core:rolling',
+                '{0}/maxking/mailman-core:{1}'.format(url, img_tag))
+        web = ('maxking/mailman-web:rolling',
+               '{0}/maxking/mailman-web:{1}'.format(url, img_tag))
+        postorius = ('maxking/postorius:rolling',
+                     '{0}/maxking/postorius:{1}'.format(url, img_tag))
+
+        try:
+            login(url)
+        except subprocess.CalledProcessError:
+            print('Failed to login to {}'.format(url))
+            continue
+        tag_and_push(core, url, img_tag)
+        tag_and_push(web, url, img_tag)
+        tag_and_push(postorius, url, img_tag)