diff --git a/bigtop_toolchain/bin/puppetize.sh b/bigtop_toolchain/bin/puppetize.sh
index 54e7c1241..071062443 100755
--- a/bigtop_toolchain/bin/puppetize.sh
+++ b/bigtop_toolchain/bin/puppetize.sh
@@ -31,7 +31,7 @@ case ${ID}-${VERSION_ID} in
         puppet module install puppetlabs-stdlib --version 4.12.0
         echo 'include_legacy_facts=true' >> /etc/puppet/puppet.conf
         ;;
-    ubuntu-18.04|ubuntu-22.04)
+    ubuntu-22.04)
         apt-get update
         apt-get -y install wget curl sudo unzip puppet software-properties-common puppet-module-puppetlabs-apt puppet-module-puppetlabs-stdlib systemd-sysv
         ;;
diff --git a/build.gradle b/build.gradle
index a84e4d4d6..3ffdcb397 100644
--- a/build.gradle
+++ b/build.gradle
@@ -266,7 +266,7 @@ Properties:
   -Pmemory=[4g|8g|...]
   -Pnum_instances=[NUM_INSTANCES]
   -Pnexus=[NEXUS_URL] (NEXUS_URL is optional)
-  -POS=[rockylinux-8|fedora-35|ubuntu-18.04|opensuse-42.3|openeuler-22.03]
+  -POS=[rockylinux-8|fedora-35|ubuntu-22.04|opensuse-42.3|openeuler-22.03]
   -Pprefix=[trunk|1.2.1|1.2.0|1.1.0|...]
   -Prepository=[REPO_URL]
   -Prun_smoke_tests (run test components defined in config file)
@@ -561,7 +561,7 @@ task "bigtop-puppet"(type:Exec,
     description: '''
 Build bigtop/puppet images
 Usage:
-  $ ./gradlew -POS=[rockylinux-8|fedora-35|debian-11|ubuntu-18.04|opensuse-42.3|openeuler-22.03] -Pprefix=[trunk|1.2.1|1.2.0|1.1.0|...] bigtop-puppet
+  $ ./gradlew -POS=[rockylinux-8|fedora-35|debian-11|ubuntu-22.04|opensuse-42.3|openeuler-22.03] -Pprefix=[trunk|1.2.1|1.2.0|1.1.0|...] bigtop-puppet
 Example:
   $ ./gradlew -POS=debian-11 -Pprefix=3.0.0 bigtop-puppet
   The built image name: bigtop/puppet:3.0.0-debian-11
@@ -580,7 +580,7 @@ task "bigtop-slaves"(type:Exec,
     description: '''
 Build bigtop/slaves images
 Usage:
-  $ ./gradlew -POS=[rockylinux-8|fedora-35|debian-11|ubuntu-18.04|opensuse-42.3|openeuler-22.03] -Pprefix=[trunk|1.2.1|1.2.0|1.1.0|...] bigtop-slaves
+  $ ./gradlew -POS=[rockylinux-8|fedora-35|debian-11|ubuntu-22.04|opensuse-42.3|openeuler-22.03] -Pprefix=[trunk|1.2.1|1.2.0|1.1.0|...] bigtop-slaves
 Example:
   $ ./gradlew -POS=debian-11 -Pprefix=3.0.0 bigtop-slaves
   The built image name: bigtop/slaves:3.0.0-debian-11
diff --git a/packages.gradle b/packages.gradle
index 31d0e3304..fbd19a5fa 100644
--- a/packages.gradle
+++ b/packages.gradle
@@ -745,7 +745,7 @@ def genTasks = { target ->
   }
   task "$target-pkg-ind" (
           description: "Invoking a native binary packaging for $target in Docker. Usage: \$ ./gradlew " +
-                  "-POS=[rockylinux-8|fedora-38|debian-11|ubuntu-18.04] " +
+                  "-POS=[rockylinux-8|fedora-38|debian-11|ubuntu-22.04] " +
                   "-Pprefix=[trunk|1.4.0|1.3.0|1.2.1|...] $target-pkg-ind " +
                   "-Pnexus=[true|false]" +
                   "[-Ppreferred-java-version=[8|11]]" +
@@ -981,7 +981,7 @@ if (nativePackaging) {
 
 task "repo-ind" (
     description: "Invoking a native repository in Docker. Usage: \$ ./gradlew " +
-            "-POS=[rockylinux-8|fedora-38|debian-11|ubuntu-18.04] " +
+            "-POS=[rockylinux-8|fedora-38|debian-11|ubuntu-22.04] " +
             "-Pprefix=[trunk|1.4.0|1.3.0|1.2.1|...] repo-ind",
     group: PACKAGES_GROUP) doLast {
   def _prefix = project.hasProperty("prefix") ? prefix : "trunk"
diff --git a/provisioner/docker/config_ubuntu-18.04.yaml b/provisioner/docker/config_ubuntu-18.04.yaml
deleted file mode 100644
index bbd75332a..000000000
--- a/provisioner/docker/config_ubuntu-18.04.yaml
+++ /dev/null
@@ -1,24 +0,0 @@
-# Licensed to the Apache Software Foundation (ASF) under one or more
-# contributor license agreements.  See the NOTICE file distributed with
-# this work for additional information regarding copyright ownership.
-# The ASF licenses this file to You under the Apache License, Version 2.0
-# (the "License"); you may not use this file except in compliance with
-# the License.  You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-docker:
-        memory_limit: "4g"
-        image:  "bigtop/puppet:trunk-ubuntu-18.04"
-
-repo: "http://repos.bigtop.apache.org/releases/3.3.0/ubuntu/18.04/$(ARCH)"
-distro: debian
-components: [hdfs, yarn, mapreduce]
-enable_local_repo: false
-smoke_test_components: [hdfs, yarn, mapreduce]