diff --git a/README.md b/README.md
index 133ebf3..d67df98 100644
--- a/README.md
+++ b/README.md
@@ -89,36 +89,24 @@ $ docker pull docker.io/maxking/mailman-web:rolling
 $ docker pull docker.io/maxking/mailman-core:rolling
 ```
 
-Rolling releases are built with every commit and also re-generated weekly. You
+Rolling releases are built with every commit and also re-generated nightly. You
 can inspect the images to get which commit it was built using:
 
 ```bash
 $ docker inspect --format '{{json .Config.Labels }}' mailman-core | python -m json.tool
 {
-    "version.core": "31f434d0",
     "version.git_commit": "45a4d7805b2b3d0e7c51679f59682d64ba02f05f",
-    "version.mm3-hk": "c625bfd2"
 }
 
 $ docker inspect --format '{{json .Config.Labels }}' mailman-web | python -m json.tool
 {
-    "version.client": "d9e9cb73",
-    "version.dj-mm3": "72a7d6c4",
     "version.git_commit": "45a4d7805b2b3d0e7c51679f59682d64ba02f05f",
-    "version.hyperkitty": "b67ca8a8",
-    "version.postorius": "73328ad4"
 }
 
 ```
 
 - `version.git_commit` : This is the commit hash of the Dockerfile in the
   [Github repo](https://github.com/maxking/docker-mailman)
-- `version.core`: The commit hash of Mailman Core
-- `version.mm3-hk`: The commit hash of Mailman3-hyperkitty plugin.
-- `version.client`: The commit hash of Mailman Client.
-- `version.hyperkitty`: The commit hash of Hyperkitty.
-- `version.postorius`: The commit hash of Postorius.
-- `version.dj-mm3`: The commit hash of Django-Mailman3 project.
 
 ## Dependencies
 
@@ -414,7 +402,7 @@ smtp_port: $SMTP_PORT
 configuration: /etc/postfix-mailman.cfg
 ```
 
-So, if you need to update the values, you can set `SMTP_HOST`, `SMTP_PORT`, 
+So, if you need to update the values, you can set `SMTP_HOST`, `SMTP_PORT`,
 `MM_HOSTNAME` environment variables in `mailman-core` container.
 
 Please verify the output for `[mta]` section to ensure that it points to
diff --git a/build.sh b/build.sh
index 370d621..9d8fe7a 100755
--- a/build.sh
+++ b/build.sh
@@ -12,49 +12,19 @@ DOCKER=docker
 
 if [ "$BUILD_ROLLING" = "yes" ]; then
     echo "Building rolling releases..."
-    python3 -m venv venv
-    source venv/bin/activate
-    pip install python-gitlab
-    # Get the latest commit for repositories and set their reference values to be
-    # used in the development builds.
-    CORE_REF=$(python get_latest_ref.py mailman/mailman)
-    CLIENT_REF=$(python get_latest_ref.py mailman/mailmanclient)
-    POSTORIUS_REF=$(python get_latest_ref.py mailman/postorius)
-    HYPERKITTY_REF=$(python get_latest_ref.py mailman/hyperkitty)
-    DJ_MM3_REF=$(python get_latest_ref.py mailman/django-mailman3)
-    MM3_HK_REF=$(python get_latest_ref.py mailman/mailman-hyperkitty)
-
     # Build the mailman-core image.
     $DOCKER build -f core/Dockerfile.dev \
-            --build-arg CORE_REF=$CORE_REF \
-            --build-arg MM3_HK_REF=$MM3_HK_REF \
-            --label version.core="$CORE_REF" \
-            --label version.mm3-hk="$MM3_HK_REF" \
             --label version.git_commit="$COMMIT_ID" \
             -t maxking/mailman-core:rolling core/
 
     # Build the mailman-web image.
     $DOCKER build -f web/Dockerfile.dev \
             --label version.git_commit="$COMMIT_ID" \
-            --label version.postorius="$POSTORIUS_REF" \
-            --label version.hyperkitty="$HYPERKITTY_REF" \
-            --label version.client="$CLIENT_REF" \
-            --label version.dj-mm3="$DJ_MM3_REF" \
-            --build-arg POSTORIUS_REF=$POSTORIUS_REF \
-            --build-arg CLIENT_REF=$CLIENT_REF \
-            --build-arg HYPERKITTY_REF=$HYPERKITTY_REF \
-            --build-arg DJ_MM3_REF=$DJ_MM3_REF \
             -t maxking/mailman-web:rolling web/
 
     # build the postorius image.
     $DOCKER build -f postorius/Dockerfile.dev\
 			--label version.git_commit="$COMMIT_ID"\
-            --label version.postorius="$POSTORIUS_REF" \
-            --label version.client="$CLIENT_REF" \
-            --label version.dj-mm3="$DJ_MM3_REF" \
-            --build-arg POSTORIUS_REF=$POSTORIUS_REF \
-            --build-arg CLIENT_REF=$CLIENT_REF \
-            --build-arg DJ_MM3_REF=$DJ_MM3_REF \
 			-t maxking/postorius:rolling postorius/
 else
     echo "Building stable releases..."
diff --git a/core/Dockerfile.dev b/core/Dockerfile.dev
index 384b170..bb0c0b8 100644
--- a/core/Dockerfile.dev
+++ b/core/Dockerfile.dev
@@ -18,8 +18,8 @@ RUN --mount=type=cache,target=/root/.cache \
     && apk add --no-cache bash su-exec postgresql-client mysql-client curl python3 py3-pip linux-headers py-cryptography mariadb-connector-c \
     && python3 -m pip install -U psycopg2 pymysql setuptools wheel \
     && python3 -m pip install \
-        git+https://gitlab.com/mailman/mailman@${CORE_REF} \
-        git+https://gitlab.com/mailman/mailman-hyperkitty@${MM3_HK_REF} \
+        git+https://gitlab.com/mailman/mailman \
+        git+https://gitlab.com/mailman/mailman-hyperkitty \
         gunicorn==19.9.0 \
     && apk del build-deps \
     && adduser -S mailman
diff --git a/get_latest_ref.py b/get_latest_ref.py
deleted file mode 100755
index a761d7e..0000000
--- a/get_latest_ref.py
+++ /dev/null
@@ -1,41 +0,0 @@
-#! /usr/bin/env python
-import os
-import sys
-import gitlab
-
-
-def usage():
-    print("{} <project_name> <project_branch>")
-
-
-def main():
-    if 2 > len(sys.argv) > 3:
-        usage()
-
-    project_name = sys.argv[1]
-    if len(sys.argv) > 2:
-        branch_name = sys.argv[2]
-    else:
-        branch_name = 'master'
-
-    gl_token = os.getenv('GITLAB_TOKEN')
-    if gl_token is None:
-        print('GITLAB_TOKEN not set!')
-        exit(1)
-    gl = gitlab.Gitlab('https://gitlab.com/', gl_token)
-
-    project = gl.projects.get(project_name)
-
-    # Find the last commit in the branch that passed the CI
-    # successfully and return the reference to it.
-    for commit in project.commits.list(ref=branch_name):
-        stasues = list(status.status == 'success' for status in
-                        commit.statuses.list() if status.allow_failure == False)
-        if len(stasues) == 0:
-            continue
-        if all(stasues):
-            print(commit.short_id)
-            break
-
-if __name__ == '__main__':
-    main()
diff --git a/postorius/Dockerfile.dev b/postorius/Dockerfile.dev
index 622ccf0..a5d0041 100644
--- a/postorius/Dockerfile.dev
+++ b/postorius/Dockerfile.dev
@@ -22,8 +22,8 @@ RUN --mount=type=cache,target=/root/.cache \
 		python3 py3-pip libffi gettext py-cryptography \
     && python3 -m pip install -U pip setuptools wheel \
     && python3 -m pip install -U \
-        git+https://gitlab.com/mailman/mailmanclient@${CLIENT_REF} \
-        git+https://gitlab.com/mailman/postorius@${POSTORIUS_REF} \
+        git+https://gitlab.com/mailman/mailmanclient \
+        git+https://gitlab.com/mailman/postorius \
 		uwsgi \
 		'psycopg2<2.9' \
 		dj-database-url \
diff --git a/web/Dockerfile.dev b/web/Dockerfile.dev
index 648c980..6d22688 100644
--- a/web/Dockerfile.dev
+++ b/web/Dockerfile.dev
@@ -23,9 +23,9 @@ RUN --mount=type=cache,target=/root/.cache \
         curl mailcap xapian-core xapian-bindings-python3 libffi gettext py-cryptography \
     && python3 -m pip install -U pip setuptools wheel \
     && python3 -m pip install -U \
-        git+https://gitlab.com/mailman/mailmanclient@${CLIENT_REF} \
-        git+https://gitlab.com/mailman/postorius@${POSTORIUS_REF} \
-        git+https://gitlab.com/mailman/hyperkitty@${HYPERKITTY_REF} \
+        git+https://gitlab.com/mailman/mailmanclient \
+        git+https://gitlab.com/mailman/postorius \
+        git+https://gitlab.com/mailman/hyperkitty \
         whoosh \
         uwsgi \
         'psycopg2<2.9' \