diff --git a/buildpack-10/Dockerfile b/buildpack-10/Dockerfile
index f346dd8..0f0fee8 100644
--- a/buildpack-10/Dockerfile
+++ b/buildpack-10/Dockerfile
@@ -14,6 +14,7 @@ RUN set -xe && \
         wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add - && \
         apt-get update && \
         apt-get install -y --no-install-recommends postgresql-client-12 && \
+        if [ $(dpkg --print-architecture) = "arm64" ];then apt-get install -y --no-install-recommends phantomjs; fi && \
         rm -rf /var/lib/apt/lists/* && \
         # install node-prune
         npm install -g node-prune && npm cache clean --force && \
diff --git a/buildpack-14/Dockerfile b/buildpack-14/Dockerfile
index 1824a97..c57ce5e 100644
--- a/buildpack-14/Dockerfile
+++ b/buildpack-14/Dockerfile
@@ -14,6 +14,7 @@ RUN set -xe && \
         wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add - && \
         apt-get update && \
         apt-get install -y --no-install-recommends postgresql-client-11 && \
+        if [ $(dpkg --print-architecture) = "arm64" ];then apt-get install -y --no-install-recommends phantomjs; fi && \
         rm -rf /var/lib/apt/lists/* && \
         # upgrade npm to 6.10
         npm i -g npm@7.8.0 && npm cache clean --force && \
diff --git a/buildpack-15/Dockerfile b/buildpack-15/Dockerfile
index 108ce2d..55b02b7 100644
--- a/buildpack-15/Dockerfile
+++ b/buildpack-15/Dockerfile
@@ -14,6 +14,7 @@ RUN set -xe && \
         wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add - && \
         apt-get update && \
         apt-get install -y --no-install-recommends postgresql-client-11 && \
+        if [ $(dpkg --print-architecture) = "arm64" ];then apt-get install -y --no-install-recommends phantomjs; fi && \
         rm -rf /var/lib/apt/lists/* && \
         # upgrade npm to 6.10
         npm i -g npm@7.7.0 && \
diff --git a/buildpack/Dockerfile b/buildpack/Dockerfile
index 4f0eff2..97960e7 100644
--- a/buildpack/Dockerfile
+++ b/buildpack/Dockerfile
@@ -1,4 +1,5 @@
 FROM node:8.16.2-jessie
+# WARNING this version can't support arm64
 
 ENV DEBIAN_VERSION_NAME jessie
 
diff --git a/runtime-10/Dockerfile b/runtime-10/Dockerfile
index 1513be9..1202ff3 100644
--- a/runtime-10/Dockerfile
+++ b/runtime-10/Dockerfile
@@ -2,6 +2,7 @@ FROM node:10.20.1-buster-slim
 
 ENV DEBIAN_VERSION_NAME=buster NODE_ENV=production
 ENV OPENSSL_CONF=/etc/ssl/
+ENV PORTCHECKER_VERSION=v1.1.0
 
 ARG USER_NAME=hackmd
 ARG UID=1500
@@ -15,12 +16,13 @@ RUN set -xe && \
         wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add - && \
         apt-get update && \
         apt-get install -y --no-install-recommends postgresql-client-12 && \
+        if [ $(dpkg --print-architecture) = "arm64" ];then apt-get install -y --no-install-recommends phantomjs; fi && \
         rm -rf /var/lib/apt/lists/* && \
         # install pchecker
-        wget https://github.com/hackmdio/portchecker/releases/download/v1.0.5/portchecker-linux-amd64.tar.gz && \
-        tar xvf portchecker-linux-amd64.tar.gz -C /usr/local/bin && \
-        mv /usr/local/bin/portchecker-linux-amd64 /usr/local/bin/pcheck && \
-        rm portchecker-linux-amd64.tar.gz && \
+        wget https://github.com/hackmdio/portchecker/releases/download/${PORTCHECKER_VERSION}/portchecker-linux-$(dpkg --print-architecture).tar.gz && \
+        tar xvf portchecker-linux-$(dpkg --print-architecture).tar.gz -C /usr/local/bin && \
+        mv /usr/local/bin/portchecker-linux-$(dpkg --print-architecture) /usr/local/bin/pcheck && \
+        rm portchecker-linux-$(dpkg --print-architecture).tar.gz && \
         # Add user and groupd
         groupadd --gid $GID $USER_NAME && \
         useradd --uid $UID --gid $USER_NAME --no-log-init --create-home $USER_NAME && \
diff --git a/runtime-10/Dockerfile-cjk b/runtime-10/Dockerfile-cjk
index 77877fa..7f2adb3 100644
--- a/runtime-10/Dockerfile-cjk
+++ b/runtime-10/Dockerfile-cjk
@@ -2,6 +2,7 @@ FROM node:10.20.1-buster-slim
 
 ENV DEBIAN_VERSION_NAME=buster NODE_ENV=production
 ENV OPENSSL_CONF=/etc/ssl/
+ENV PORTCHECKER_VERSION=v1.1.0
 
 ARG USER_NAME=hackmd
 ARG UID=1500
@@ -20,12 +21,13 @@ RUN set -xe && \
         wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add - && \
         apt-get update && \
         apt-get install -y --no-install-recommends postgresql-client-12 && \
+        if [ $(dpkg --print-architecture) = "arm64" ];then apt-get install -y --no-install-recommends phantomjs; fi && \
         rm -rf /var/lib/apt/lists/* && \
         # install pchecker
-        wget https://github.com/hackmdio/portchecker/releases/download/v1.0.5/portchecker-linux-amd64.tar.gz && \
-        tar xvf portchecker-linux-amd64.tar.gz -C /usr/local/bin && \
-        mv /usr/local/bin/portchecker-linux-amd64 /usr/local/bin/pcheck && \
-        rm portchecker-linux-amd64.tar.gz && \
+        wget https://github.com/hackmdio/portchecker/releases/download/${PORTCHECKER_VERSION}/portchecker-linux-$(dpkg --print-architecture).tar.gz && \
+        tar xvf portchecker-linux-$(dpkg --print-architecture).tar.gz -C /usr/local/bin && \
+        mv /usr/local/bin/portchecker-linux-$(dpkg --print-architecture) /usr/local/bin/pcheck && \
+        rm portchecker-linux-$(dpkg --print-architecture).tar.gz && \
         # Add user and groupd
         groupadd --gid $GID $USER_NAME && \
         useradd --uid $UID --gid $USER_NAME --no-log-init --create-home $USER_NAME && \
diff --git a/runtime-14/Dockerfile b/runtime-14/Dockerfile
index c713e2f..8af32fd 100644
--- a/runtime-14/Dockerfile
+++ b/runtime-14/Dockerfile
@@ -1,6 +1,7 @@
 FROM node:14.17.2-buster
 
 ENV DEBIAN_VERSION_NAME=buster NODE_ENV=production
+ENV PORTCHECKER_VERSION=v1.1.0
 
 ARG USER_NAME=hackmd
 ARG UID=1500
@@ -19,12 +20,13 @@ RUN set -xe && \
         wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add - && \
         apt-get update && \
         apt-get install -y --no-install-recommends postgresql-client-11 && \
+        if [ $(dpkg --print-architecture) = "arm64" ];then apt-get install -y --no-install-recommends phantomjs; fi && \
         rm -rf /var/lib/apt/lists/* && \
         # install pchecker
-        wget https://github.com/hackmdio/portchecker/releases/download/v1.1.0/portchecker-linux-amd64.tar.gz && \
-        tar xvf portchecker-linux-amd64.tar.gz -C /usr/local/bin && \
-        mv /usr/local/bin/portchecker-linux-amd64 /usr/local/bin/pcheck && \
-        rm portchecker-linux-amd64.tar.gz && \
+        wget https://github.com/hackmdio/portchecker/releases/download/${PORTCHECKER_VERSION}/portchecker-linux-$(dpkg --print-architecture).tar.gz && \
+        tar xvf portchecker-linux-$(dpkg --print-architecture).tar.gz -C /usr/local/bin && \
+        mv /usr/local/bin/portchecker-linux-$(dpkg --print-architecture) /usr/local/bin/pcheck && \
+        rm portchecker-linux-$(dpkg --print-architecture).tar.gz && \
         # Add user and groupd
         groupadd --gid $GID $USER_NAME && \
         useradd --uid $UID --gid $USER_NAME --no-log-init --create-home $USER_NAME && \
diff --git a/runtime-15/Dockerfile b/runtime-15/Dockerfile
index ccc2ef5..55f6577 100644
--- a/runtime-15/Dockerfile
+++ b/runtime-15/Dockerfile
@@ -1,6 +1,7 @@
 FROM node:15.12.0-buster
 
 ENV DEBIAN_VERSION_NAME=jessie NODE_ENV=production
+ENV PORTCHECKER_VERSION=v1.1.0
 
 ARG USER_NAME=hackmd
 ARG UID=1500
@@ -19,12 +20,13 @@ RUN set -xe && \
         wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add - && \
         apt-get update && \
         apt-get install -y --no-install-recommends postgresql-client-11 && \
+        if [ $(dpkg --print-architecture) = "arm64" ];then apt-get install -y --no-install-recommends phantomjs; fi && \
         rm -rf /var/lib/apt/lists/* && \
         # install pchecker
-        wget https://github.com/hackmdio/portchecker/releases/download/v1.0.5/portchecker-linux-amd64.tar.gz && \
-        tar xvf portchecker-linux-amd64.tar.gz -C /usr/local/bin && \
-        mv /usr/local/bin/portchecker-linux-amd64 /usr/local/bin/pcheck && \
-        rm portchecker-linux-amd64.tar.gz && \
+        wget https://github.com/hackmdio/portchecker/releases/download/${PORTCHECKER_VERSION}/portchecker-linux-$(dpkg --print-architecture).tar.gz && \
+        tar xvf portchecker-linux-$(dpkg --print-architecture).tar.gz -C /usr/local/bin && \
+        mv /usr/local/bin/portchecker-linux-$(dpkg --print-architecture) /usr/local/bin/pcheck && \
+        rm portchecker-linux-$(dpkg --print-architecture).tar.gz && \
         # Add user and groupd
         groupadd --gid $GID $USER_NAME && \
         useradd --uid $UID --gid $USER_NAME --no-log-init --create-home $USER_NAME && \
diff --git a/runtime/Dockerfile b/runtime/Dockerfile
index f08178e..a655de5 100644
--- a/runtime/Dockerfile
+++ b/runtime/Dockerfile
@@ -1,4 +1,5 @@
 FROM node:8.16.2-jessie
+# WARNING this version can't support arm64
 
 ENV DEBIAN_VERSION_NAME=jessie NODE_ENV=production