diff --git a/README.md b/README.md
index 8b28569..823eef3 100644
--- a/README.md
+++ b/README.md
@@ -16,24 +16,7 @@ A GitHub Action to deploy your static site to GitHub Pages with [Static Site Gen
 
 ## Getting started
 
-### (1) Add deploy Key
-
-Generate deploy key with the following command.
-
-```sh
-ssh-keygen -t rsa -b 4096 -C "your@email.com" -f gh-pages -N ""
-
-# You will get 2 files:
-#   gh-pages.pub (public key)
-#   gh-pages     (private key)
-```
-
-Next, Go to **Repository Settings**
-
-- Go to **Deploy Keys** and add your public key with the "Allow write access"
-- Go to **Secrets** and add your private key as `ACTIONS_DEPLOY_KEY`
-
-### (2) Create `main.workflow`
+### Create `.github/main.workflow`
 
 An example with Hugo action.
 
@@ -60,18 +43,18 @@ action "is-not-branch-deleted" {
 
 action "build" {
   needs = ["is-branch-master", "is-not-branch-deleted"]
-  uses = "peaceiris/actions-hugo@v0.55.6"
+  uses = "peaceiris/actions-hugo@v0.56.3"
   args = ["--gc", "--minify", "--cleanDestinationDir"]
 }
 
 action "deploy" {
   needs = "build"
-  uses = "peaceiris/actions-gh-pages@v1.0.1"
+  uses = "peaceiris/actions-gh-pages@v1.1.0"
   env = {
     PUBLISH_DIR = "./public"
     PUBLISH_BRANCH = "gh-pages"
   }
-  secrets = ["ACTIONS_DEPLOY_KEY"]
+  secrets = ["GITHUB_TOKEN"]
 }
 ```
 
@@ -115,12 +98,12 @@ action "mkdocs-build" {
 
 action "deploy" {
   needs = ["mkdocs-build"]
-  uses = "peaceiris/actions-gh-pages@v1.0.1"
+  uses = "peaceiris/actions-gh-pages@v1.1.0"
   env = {
     PUBLISH_DIR = "./site"
     PUBLISH_BRANCH = "gh-pages"
   }
-  secrets = ["ACTIONS_DEPLOY_KEY"]
+  secrets = ["GITHUB_TOKEN"]
 }
 ```
 
@@ -137,5 +120,3 @@ action "deploy" {
 ## About the author
 
 - [peaceiris's homepage](https://peaceiris.com/)
-
-<a href="https://www.patreon.com/peaceiris"><img src="./images/patreon.jpg" alt="peaceiris - Patreon" width="150px"></a>
diff --git a/entrypoint.sh b/entrypoint.sh
index 93a1f22..2314d36 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -1,31 +1,31 @@
 #!/bin/sh
 
-# setup ssh
-if [ -z "${ACTIONS_DEPLOY_KEY}" ]; then
-    echo "error: not found ACTIONS_DEPLOY_KEY"
+# check values
+if [ -z "${GITHUB_TOKEN}" ]; then
+    echo "error: not found GITHUB_TOKEN"
+    exit 1
+fi
+
+if [ -z "${PUBLISH_BRANCH}" ]; then
+    echo "error: not found PUBLISH_BRANCH"
     exit 1
 fi
-mkdir /root/.ssh
-ssh-keyscan -t rsa github.com > /root/.ssh/known_hosts
-echo "${ACTIONS_DEPLOY_KEY}" > /root/.ssh/id_rsa
-chmod 400 /root/.ssh/id_rsa
 
-# push to gh-pages branch
 if [ -z "${PUBLISH_DIR}" ]; then
     echo "error: not found PUBLISH_DIR"
     exit 1
 fi
 cd "${PUBLISH_DIR}" || exit 1
-if [ -z "${PUBLISH_BRANCH}" ]; then
-    echo "error: not found PUBLISH_BRANCH"
-    exit 1
-fi
-remote_repo="git@github.com:${GITHUB_REPOSITORY}.git"
+
+# initialize git
+remote_repo="https://${GITHUB_ACTOR}:${GITHUB_TOKEN}@github.com/${GITHUB_REPOSITORY}.git"
 remote_branch="${PUBLISH_BRANCH}"
 git init
 git config user.name "${GITHUB_ACTOR}"
 git config user.email "${GITHUB_ACTOR}@users.noreply.github.com"
 git remote add origin "${remote_repo}"
+
+# push to publishing branch
 git checkout "${remote_branch}" || git checkout --orphan "${remote_branch}"
 git add --all
 timestamp=$(date -u)
diff --git a/images/patreon.jpg b/images/patreon.jpg
deleted file mode 100644
index 1c68052..0000000
Binary files a/images/patreon.jpg and /dev/null differ