diff --git a/.circleci/docker-compose.yml b/.circleci/docker-compose.yml
new file mode 100644
index 00000000..ad5530fa
--- /dev/null
+++ b/.circleci/docker-compose.yml
@@ -0,0 +1,15 @@
+version: '3'
+
+services:
+  sshd:
+    image: panubo/sshd:latest
+    ports:
+      - "2222:22"
+    volumes:
+      - ../os-integration-test/etc/ssh/authorized_keys:/root/.ssh/authorized_keys
+      - ../os-integration-test/etc/ssh/ssh_host_rsa_key:/etc/ssh/ssh_host_rsa_key
+      - ../os-integration-test/etc/ssh/ssh_host_dsa_key:/etc/ssh/ssh_host_dsa_key
+      - ../os-integration-test/etc/ssh/ssh_host_ecdsa_key:/etc/ssh/ssh_host_ecdsa_key
+      - ../os-integration-test/etc/ssh/ssh_host_ed25519_key:/etc/ssh/ssh_host_ed25519_key
+    environment:
+      - SSH_ENABLE_ROOT=true
diff --git a/cli/gssh-example.groovy b/cli/gssh-example.groovy
index 526c9e81..4a95be73 100644
--- a/cli/gssh-example.groovy
+++ b/cli/gssh-example.groovy
@@ -1,8 +1,8 @@
 ssh.remotes {
     tester {
         host = 'localhost'
-        port = 22
-        user = 'tester'
+        port = 2222
+        user = 'root'
         identity = new File('os-integration-test/etc/ssh/id_rsa')
         knownHosts = addHostKey(new File('cli/build/known_hosts'))
     }
@@ -15,5 +15,5 @@ ssh.run {
 }
 
 assert new File('cli/build/known_hosts').readLines().any { line ->
-    line.startsWith('localhost ssh-rsa')
+    line.startsWith('localhost ecdsa-sha2-nistp256')
 }
diff --git a/docs/src/docs/asciidoc/getting-started.adoc b/docs/src/docs/asciidoc/getting-started.adoc
index 9cbb1de0..d97a726f 100644
--- a/docs/src/docs/asciidoc/getting-started.adoc
+++ b/docs/src/docs/asciidoc/getting-started.adoc
@@ -56,7 +56,7 @@ Gradle 2.0 style:
 ----
 buildscript {
   repositories {
-    jcenter()
+    mavenCentral()
   }
   dependencies {
     classpath 'org.hidetake:gradle-ssh-plugin:{gradle-ssh-version}'
@@ -73,7 +73,7 @@ The plugin also supports Gradle 1.x with the backport library:
 ----
 buildscript {
   repositories {
-    jcenter()
+    mavenCentral()
   }
   dependencies {
     classpath 'org.hidetake:gradle-ssh-plugin:{gradle-ssh-version}'
diff --git a/docs/src/docs/asciidoc/user-guide.adoc b/docs/src/docs/asciidoc/user-guide.adoc
index 764270aa..966013f9 100644
--- a/docs/src/docs/asciidoc/user-guide.adoc
+++ b/docs/src/docs/asciidoc/user-guide.adoc
@@ -1637,7 +1637,7 @@ Following example transfers the `groovy-all` jar and execute a script on the rem
 [source,groovy]
 ----
 repositories {
-  jcenter()
+  mavenCentral()
 }
 
 configurations {
diff --git a/os-integration-test/etc/ssh/authorized_keys b/os-integration-test/etc/ssh/authorized_keys
new file mode 100644
index 00000000..dc4dbd9c
--- /dev/null
+++ b/os-integration-test/etc/ssh/authorized_keys
@@ -0,0 +1,3 @@
+ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDvyn/5Z5s4TjxpCTJT0csJ7MeARchWzppcofSuAGaWeY0gR/vLxNZ1DupBPV6x7GGYZKkKP+n2JJ95ZO/TAbtPQfrq2hS24HtmVXeIQNhdJ5gFgplv5wAEOGX1t8Vy4tHlcMGtMYp+JvIup8YiHW6uic9QMaE5/3Q2DobllAQr17yDgEU9catR70FKqisemlOUaYc9KQWa3gZ8d6rHtfaAI1HnK6U7rH9ZzXmejyvSt6NhT7iQ2yJMF0HOpdQmnDqxJr5jOeWrgf0TbwW0AN3TXrqLFpUdy2DCWF0XEMOaLZhINMV1yxShYAUzhqbnP0voKoKv8IaSG/htJKAVIXn9
+ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC1xN7CzvOi8IOUqXs+y7BvCwr52enPvcaObR5ymVMZKwPiXXqNKOnvQsKv23JxSOfoHS7WeWqTCkxrawsTSB6ZO7qy6AHxF1qa26KGuwkgbAa7wZIAQtrAH/li04jllxDKYdcriq76poVVvK76q6ASxAy76eboWDrABBXhNWD1pHZj5pE0vKpdGRnAqe/vWIkkmJLy5cVwcrKz8RThtTYv1w5Wuzp2z4W7+O9oFXvYr76lztxLSMtgGcoM6hRUdn+CfBP4aN8LBr0MnvAcQec2aZUOEBFl8q73ZRQ10SmZciIaLEBI/MrB0Oa/TY48/FcQjwaFmQdyp2AIG/tQdzmx your_email@example.com
+ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBEmU+yuKZZrxAE61hYT1sm0cOKbUie5d61zXPw4ehgWiwyZYtEmH+pDmh/MZfxB6W8QUxOj/ClSYGtbnrDuFm1Y=
diff --git a/os-integration-test/run-sshd.sh b/os-integration-test/run-sshd.sh
index 831e3b17..62f8b10e 100755
--- a/os-integration-test/run-sshd.sh
+++ b/os-integration-test/run-sshd.sh
@@ -1,10 +1,3 @@
 #!/bin/bash -xe
 
-exec docker run --rm -p 22:22 \
-  -e "SSH_HOST_DSA_KEY=$(cat etc/ssh/ssh_host_dsa_key)" \
-  -e "SSH_HOST_RSA_KEY=$(cat etc/ssh/ssh_host_rsa_key)" \
-  -e "SSH_HOST_ECDSA_KEY=$(cat etc/ssh/ssh_host_ecdsa_key)" \
-  -e "SSH_HOST_ED25519_KEY=$(cat etc/ssh/ssh_host_ed25519_key)" \
-  -e "SSH_AUTHORIZED_KEYS=$(cat etc/ssh/id_rsa.pub etc/ssh/id_rsa_pass.pub etc/ssh/id_ecdsa.pub)" \
-  --name sshd \
-  int128/sshd
+exec docker-compose -f $( dirname -- "$0"; )/../.circleci/docker-compose.yml up
diff --git a/os-integration-test/src/main/groovy/org/hidetake/groovy/ssh/test/os/Fixture.groovy b/os-integration-test/src/main/groovy/org/hidetake/groovy/ssh/test/os/Fixture.groovy
index e43576d3..c73c9d86 100644
--- a/os-integration-test/src/main/groovy/org/hidetake/groovy/ssh/test/os/Fixture.groovy
+++ b/os-integration-test/src/main/groovy/org/hidetake/groovy/ssh/test/os/Fixture.groovy
@@ -16,8 +16,8 @@ class Fixture {
         service.remotes {
             Default {
                 host = 'localhost'
-                port = 22
-                user = 'tester'
+                port = 2222
+                user = 'root'
                 identity = new File("etc/ssh/id_rsa")
                 knownHosts = addHostKey(new File("build/known_hosts"))
             }