diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 359f5153..9f395dc6 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -28,13 +28,12 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install -r requirements.txt
-      - name: Install env
-        run: echo "PERCY_TOKEN=${{ secrets.PERCY_TOKEN }}" >> $GITHUB_ENV
+      - run: npm install --save-dev @percy/cli
       - name: Percy Test
-        uses: percy/exec-action@v0.3.1
-        with:
-          working-directory: ./test
-          command: "./run_all.sh"
+        run: npx percy exec -- bash ./run_all.sh
+        working-directory: ./test
+        env:
+          PERCY_TOKEN: ${{ secrets.PERCY_TOKEN }}
       - name: Upload test output
         uses: actions/upload-artifact@v1
         if: failure()
diff --git a/pywebio/platform/tornado.py b/pywebio/platform/tornado.py
index a12cdb8e..8e82ad85 100644
--- a/pywebio/platform/tornado.py
+++ b/pywebio/platform/tornado.py
@@ -276,7 +276,7 @@ def start_server(applications: Union[Callable[[], None], List[Callable[[], None]
 
     page.MAX_PAYLOAD_SIZE = max_payload_size = parse_file_size(max_payload_size)
 
-    # covered `os.environ.get()` func with `bool()` to pervent type check error
+    # covered `os.environ.get()` func with `bool()` to prevent type check error
     debug = Session.debug = bool(os.environ.get('PYWEBIO_DEBUG', debug))
 
     # Since some cloud server may close idle connections (such as heroku),
diff --git a/requirements.txt b/requirements.txt
index 4bc7da57..a24b29cd 100755
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,8 +16,8 @@ plotly
 Pillow
 
 # test requirements
-selenium==3.*
-percy-python-selenium==0.1.3
+selenium
+percy-selenium
 coverage
 
 # doc building requirements
diff --git a/test/.percy.yml b/test/.percy.yml
index bdeff16b..063b355b 100644
--- a/test/.percy.yml
+++ b/test/.percy.yml
@@ -1,3 +1,6 @@
-version: 1
+version: 2
 snapshot:
-  widths: [1000]
\ No newline at end of file
+  widths:
+    - 1000
+discovery:
+  disable-cache: true
diff --git a/test/11.charts.py b/test/11.charts.py
index eecf94e6..1450dfff 100644
--- a/test/11.charts.py
+++ b/test/11.charts.py
@@ -6,7 +6,7 @@
 from cutecharts.charts import Line
 from cutecharts.charts import Pie
 from cutecharts.charts import Radar
-from percy import percySnapshot
+from percy import percy_snapshot
 from selenium.webdriver import Chrome
 
 import pywebio
@@ -376,7 +376,7 @@ def target():
 
 def test(server_proc: subprocess.Popen, browser: Chrome):
     time.sleep(8)
-    percySnapshot(browser, name='bokeh')
+    percy_snapshot(browser, name='bokeh')
 
 
 def start_test_server():
diff --git a/test/13.misc.py b/test/13.misc.py
index a71ba85a..a55dfdc4 100644
--- a/test/13.misc.py
+++ b/test/13.misc.py
@@ -2,8 +2,9 @@
 import subprocess
 from functools import partial
 
-from percy import percySnapshot
+from percy import percy_snapshot
 from selenium.webdriver import Chrome
+from selenium.webdriver.common.by import By
 
 import pywebio
 import template
@@ -208,7 +209,7 @@ def test(server_proc: subprocess.Popen, browser: Chrome):
 
     # browser.get('http://localhost:8080/?app=thread')
     browser.execute_script("arguments[0].click();",
-                           browser.find_element_by_css_selector('#pywebio-scope-go_app button'))
+                           browser.find_element(By.CSS_SELECTOR, '#pywebio-scope-go_app button'))
     time.sleep(2)
 
     thread_out = template.save_output(browser)[-1]
@@ -220,10 +221,10 @@ def test(server_proc: subprocess.Popen, browser: Chrome):
     time.sleep(6)
 
     browser.execute_script("arguments[0].click();",
-                           browser.find_element_by_css_selector('#pywebio-scope-error button'))
+                           browser.find_element(By.CSS_SELECTOR, '#pywebio-scope-error button'))
     browser.execute_script("$('button[type=submit]').click();")
     time.sleep(2)
-    percySnapshot(browser, name='misc')
+    percy_snapshot(browser, name='misc')
 
 
 def start_test_server():
diff --git a/test/16.path_deploy.py b/test/16.path_deploy.py
index ac701c94..c0d4ac90 100644
--- a/test/16.path_deploy.py
+++ b/test/16.path_deploy.py
@@ -1,8 +1,9 @@
 import os
 import subprocess
 
-from percy import percySnapshot
+from percy import percy_snapshot
 from selenium.webdriver import Chrome
+from selenium.webdriver.common.by import By
 
 import util
 from pywebio.platform import path_deploy
@@ -14,10 +15,10 @@
 
 def test(server_proc: subprocess.Popen, browser: Chrome):
     time.sleep(10)
-    percySnapshot(browser, name='path_deploy_1')
+    percy_snapshot(browser, name='path_deploy_1')
     browser.get('http://localhost:8080/')
     time.sleep(2)
-    page_html = browser.find_element_by_tag_name('body').get_attribute('innerHTML')
+    page_html = browser.find_element(By.TAG_NAME, 'body').get_attribute('innerHTML')
     print(page_html)
     for f in ['bmi', 'bokeh_app', 'chat_room', 'input_usage', 'output_usage', 'set_env_demo']:
         assert f in page_html, f'{f} not in page'
diff --git a/test/18.pin_test.py b/test/18.pin_test.py
index 9b54f8b6..8336b82b 100644
--- a/test/18.pin_test.py
+++ b/test/18.pin_test.py
@@ -1,8 +1,9 @@
 import subprocess
 import time
 
-from percy import percySnapshot
+from percy import percy_snapshot
 from selenium.webdriver import Chrome
+from selenium.webdriver.common.by import By
 from selenium.webdriver.common.action_chains import ActionChains
 from selenium.webdriver.support.ui import Select
 
@@ -67,25 +68,25 @@ async def coro_target():
 
 
 def test_one_page(browser: Chrome):
-    browser.find_element_by_css_selector('[name=input]').send_keys("1")
+    browser.find_element(By.CSS_SELECTOR, '[name=input]').send_keys("1")
     time.sleep(0.5)
-    browser.find_element_by_css_selector('[name=textarea]').send_keys("2")
+    browser.find_element(By.CSS_SELECTOR, '[name=textarea]').send_keys("2")
     time.sleep(0.5)
-    Select(browser.find_element_by_css_selector('[name=select]')).select_by_visible_text('B')
+    Select(browser.find_element(By.CSS_SELECTOR, '[name=select]')).select_by_visible_text('B')
     time.sleep(0.5)
-    Select(browser.find_element_by_css_selector('[name=select_multiple]')).select_by_visible_text('A')
+    Select(browser.find_element(By.CSS_SELECTOR, '[name=select_multiple]')).select_by_visible_text('A')
     time.sleep(0.5)
-    browser.find_element_by_css_selector('[name=checkbox]').click()
+    browser.find_element(By.CSS_SELECTOR, '[name=checkbox]').click()
     time.sleep(0.5)
-    browser.find_element_by_css_selector('[name=checkbox_inline]').click()
+    browser.find_element(By.CSS_SELECTOR, '[name=checkbox_inline]').click()
     time.sleep(0.5)
-    browser.find_element_by_css_selector('[name=radio]').click()
+    browser.find_element(By.CSS_SELECTOR, '[name=radio]').click()
     time.sleep(0.5)
-    browser.find_element_by_css_selector('[name=radio_inline]').click()
+    browser.find_element(By.CSS_SELECTOR, '[name=radio_inline]').click()
     time.sleep(0.5)
-    browser.find_element_by_css_selector('button[type=\"submit\"]').click()
+    browser.find_element(By.CSS_SELECTOR, 'button[type=\"submit\"]').click()
     time.sleep(0.5)
-    codeMirror = browser.find_element_by_css_selector(".CodeMirror pre")
+    codeMirror = browser.find_element(By.CSS_SELECTOR, ".CodeMirror pre")
     action_chains = ActionChains(browser)
     action_chains.move_to_element(codeMirror).click(codeMirror).send_keys('3').perform()
 
@@ -95,14 +96,14 @@ def test(server_proc: subprocess.Popen, browser: Chrome):
     time.sleep(2)
     test_one_page(browser)
     time.sleep(2)
-    percySnapshot(browser, name='pin')
-    assert PASSED_TEXT in browser.find_element_by_id('markdown-body').get_attribute('innerHTML')
+    percy_snapshot(browser, name='pin')
+    assert PASSED_TEXT in browser.find_element(By.ID, 'markdown-body').get_attribute('innerHTML')
 
     browser.get('http://localhost:8080/?app=coro_target')
     time.sleep(2)
     test_one_page(browser)
     time.sleep(1)
-    assert PASSED_TEXT in browser.find_element_by_id('markdown-body').get_attribute('innerHTML')
+    assert PASSED_TEXT in browser.find_element(By.ID, 'markdown-body').get_attribute('innerHTML')
 
 
 def start_test_server():
diff --git a/test/Readme.md b/test/Readme.md
index db42d1d4..04c3f784 100644
--- a/test/Readme.md
+++ b/test/Readme.md
@@ -10,11 +10,11 @@
 ### 运行测试用例
 
 ```bash
-pip3 install -e ".[dev]" 
-npm install -D @percy/agent
+pip3 install -r ../requirements.txt
+npm install --save-dev @percy/cli
 export PERCY_TOKEN=[projects-token]
 
-npx percy exec -- python3 1.basic_output.py auto
+npx percy exec -- python3 1.basic.py auto
 ```
 
 
diff --git a/test/template.py b/test/template.py
index 96186b3d..6cff5f08 100644
--- a/test/template.py
+++ b/test/template.py
@@ -7,9 +7,10 @@
 from functools import partial
 from os import path
 
-from percy import percySnapshot
+from percy import percy_snapshot
 from selenium.webdriver import Chrome
 from selenium.webdriver.support.ui import Select
+from selenium.webdriver.common.by import By
 
 from pywebio.input import *
 from pywebio.output import *
@@ -19,7 +20,7 @@
 
 
 def get_visible_form(browser):
-    forms = browser.find_elements_by_css_selector('#input-cards > div')
+    forms = browser.find_elements(By.CSS_SELECTOR, '#input-cards > div')
     for f in forms:
         if f.is_displayed():
             return f
@@ -347,25 +348,26 @@ def test_output(browser: Chrome, enable_percy=False, action_delay=0.5):
     time.sleep(action_delay * 2)  # 等待输出完毕
 
     # get focus
-    browser.find_element_by_tag_name('body').click()
+    browser.find_element(By.TAG_NAME, 'body').click()
     time.sleep(action_delay * 2)
 
     browser.execute_script('$("html, body").scrollTop( $(document).height()+100);')
     time.sleep(action_delay)
-    enable_percy and percySnapshot(browser, name='begin output')
+    if enable_percy:
+        percy_snapshot(browser, name='begin output')
 
-    tab_btns = browser.find_elements_by_css_selector('#pywebio-scope-table_cell_buttons button')
+    tab_btns = browser.find_elements(By.CSS_SELECTOR, '#pywebio-scope-table_cell_buttons button')
     for btn in tab_btns:
         time.sleep(action_delay)
         browser.execute_script("arguments[0].click();", btn)
 
-    btns = browser.find_elements_by_css_selector('#pywebio-scope-put_buttons button')
+    btns = browser.find_elements(By.CSS_SELECTOR, '#pywebio-scope-put_buttons button')
     for btn in btns:
         time.sleep(action_delay)
         browser.execute_script("arguments[0].click();", btn)
 
     # 滚动窗口
-    btns = browser.find_elements_by_css_selector('#pywebio-scope-scroll_basis_btns button')
+    btns = browser.find_elements(By.CSS_SELECTOR, '#pywebio-scope-scroll_basis_btns button')
     for btn in btns:
         time.sleep(action_delay * 2)
         browser.execute_script("arguments[0].click();", btn)
@@ -373,14 +375,16 @@ def test_output(browser: Chrome, enable_percy=False, action_delay=0.5):
     time.sleep(action_delay * 2)
     browser.execute_script('$("html, body").scrollTop( $(document).height()+100);')
     time.sleep(action_delay)
-    enable_percy and percySnapshot(browser, name='basic output')
+    if enable_percy:
+        percy_snapshot(browser, name='basic output')
 
     # popup
-    btn = browser.find_element_by_css_selector('#pywebio-scope-popup_btn button')
+    btn = browser.find_element(By.CSS_SELECTOR, '#pywebio-scope-popup_btn button')
     browser.execute_script("arguments[0].click();", btn)
 
     time.sleep(action_delay * 2)
-    enable_percy and percySnapshot(browser, name='popup')
+    if enable_percy:
+        percy_snapshot(browser, name='popup')
 
     browser.execute_script("$('.modal').modal('hide');")
 
@@ -603,128 +607,132 @@ def test_input(browser: Chrome, enable_percy=False, action_delay=0.5):
         template.background_input() # 或者 await template.coro_background_input() / flask_coro_background_input
 
     """
-    browser.find_element_by_css_selector('#input-container input').send_keys("22")
-    browser.find_element_by_tag_name('form').submit()
+    browser.find_element(By.CSS_SELECTOR, '#input-container input').send_keys("22")
+    browser.find_element(By.TAG_NAME, 'form').submit()
 
     time.sleep(action_delay)
-    browser.find_element_by_css_selector('#input-container input').send_keys("secret")
-    browser.find_element_by_tag_name('form').submit()
+    browser.find_element(By.CSS_SELECTOR, '#input-container input').send_keys("secret")
+    browser.find_element(By.TAG_NAME, 'form').submit()
 
     time.sleep(action_delay)
-    browser.find_element_by_tag_name('form').submit()
+    browser.find_element(By.TAG_NAME, 'form').submit()
 
     # checkbox
     time.sleep(action_delay)
-    browser.execute_script("arguments[0].click();", browser.find_element_by_css_selector('#input-container input'))
-    browser.find_element_by_tag_name('form').submit()
+    browser.execute_script("arguments[0].click();", browser.find_element(By.CSS_SELECTOR, '#input-container input'))
+    browser.find_element(By.TAG_NAME, 'form').submit()
 
     # Text Area
     time.sleep(action_delay)
-    browser.find_element_by_css_selector('#input-container textarea').send_keys(" ".join(str(i) for i in range(20)))
-    browser.find_element_by_tag_name('form').submit()
+    browser.find_element(By.CSS_SELECTOR, '#input-container textarea').send_keys(" ".join(str(i) for i in range(20)))
+    browser.find_element(By.TAG_NAME, 'form').submit()
 
     # file
     time.sleep(action_delay)
     img_path = path.join(here_dir, 'assets', 'img.png')
-    browser.find_element_by_css_selector('#input-container input').send_keys(img_path)
-    browser.find_element_by_tag_name('form').submit()
+    browser.find_element(By.CSS_SELECTOR, '#input-container input').send_keys(img_path)
+    browser.find_element(By.TAG_NAME, 'form').submit()
 
     # text
     time.sleep(action_delay)
-    browser.find_element_by_css_selector('#input-container input').send_keys("text")
-    browser.find_element_by_tag_name('form').submit()
+    browser.find_element(By.CSS_SELECTOR, '#input-container input').send_keys("text")
+    browser.find_element(By.TAG_NAME, 'form').submit()
 
     # 表单取消
     time.sleep(action_delay)
-    browser.execute_script("arguments[0].click();", browser.find_element_by_css_selector('.pywebio_cancel_btn'))
+    browser.execute_script("arguments[0].click();", browser.find_element(By.CSS_SELECTOR, '.pywebio_cancel_btn'))
 
     # valid func, age in [10, 60]
     time.sleep(action_delay)
-    browser.find_element_by_css_selector('#input-container input').send_keys("1")
-    browser.find_element_by_tag_name('form').submit()
+    browser.find_element(By.CSS_SELECTOR, '#input-container input').send_keys("1")
+    browser.find_element(By.TAG_NAME, 'form').submit()
     time.sleep(action_delay)
-    browser.find_element_by_css_selector('#input-container input').clear()
-    browser.find_element_by_css_selector('#input-container input').send_keys("90")
-    browser.find_element_by_tag_name('form').submit()
+    browser.find_element(By.CSS_SELECTOR, '#input-container input').clear()
+    browser.find_element(By.CSS_SELECTOR, '#input-container input').send_keys("90")
+    browser.find_element(By.TAG_NAME, 'form').submit()
     time.sleep(action_delay)
-    browser.find_element_by_css_selector('#input-container input').clear()
-    browser.find_element_by_css_selector('#input-container input').send_keys("23")
-    browser.find_element_by_tag_name('form').submit()
+    browser.find_element(By.CSS_SELECTOR, '#input-container input').clear()
+    browser.find_element(By.CSS_SELECTOR, '#input-container input').send_keys("23")
+    browser.find_element(By.TAG_NAME, 'form').submit()
 
     # code
     time.sleep(action_delay)
-    # browser.find_element_by_css_selector('textarea').send_keys(" ".join(str(i) for i in range(20)))
-    browser.find_element_by_tag_name('form').submit()
+    # browser.find_element(By.CSS_SELECTOR, 'textarea').send_keys(" ".join(str(i) for i in range(20)))
+    browser.find_element(By.TAG_NAME, 'form').submit()
 
     # Cancelable from group
     time.sleep(action_delay)
-    browser.find_element_by_name('name').send_keys("name")
+    browser.find_element(By.NAME, 'name').send_keys("name")
     time.sleep(action_delay * 2)
-    browser.find_element_by_name('age').send_keys("90")
-    browser.find_element_by_tag_name('form').submit()
+    browser.find_element(By.NAME, 'age').send_keys("90")
+    browser.find_element(By.TAG_NAME, 'form').submit()
     browser.execute_script('$("html, body").scrollTop( $(document).height()+100);')
     time.sleep(action_delay)
-    enable_percy and percySnapshot(browser, name='input group invalid')
+    if enable_percy:
+        percy_snapshot(browser, name='input group invalid')
 
     time.sleep(action_delay)
-    browser.find_element_by_name('age').clear()
-    browser.find_element_by_name('age').send_keys("23")
-    browser.find_element_by_tag_name('form').submit()
+    browser.find_element(By.NAME, 'age').clear()
+    browser.find_element(By.NAME, 'age').send_keys("23")
+    browser.find_element(By.TAG_NAME, 'form').submit()
 
     # callback actions
     time.sleep(action_delay)
-    browser.execute_script("arguments[0].click();", browser.find_element_by_css_selector('form button[type="button"]'))
+    browser.execute_script("arguments[0].click();", browser.find_element(By.CSS_SELECTOR, 'form button[type="button"]'))
     time.sleep(action_delay)
 
     # input action
     time.sleep(action_delay)
-    browser.execute_script("arguments[0].click();", browser.find_element_by_css_selector('form button[type="button"]'))
+    browser.execute_script("arguments[0].click();", browser.find_element(By.CSS_SELECTOR, 'form button[type="button"]'))
     time.sleep(action_delay)
-    browser.find_element_by_tag_name('form').submit()
+    browser.find_element(By.TAG_NAME, 'form').submit()
 
     # Input group
     time.sleep(action_delay)
     browser.execute_script('$("html, body").scrollTop( $(document).height()+100);')
     time.sleep(action_delay)
-    enable_percy and percySnapshot(browser, name='input group all')
-    browser.find_element_by_name('text').send_keys("name")
-    browser.find_element_by_name('number').send_keys("20")
-    browser.find_element_by_name('float').send_keys("3.1415")
-    browser.find_element_by_name('password').send_keys("password")
-    browser.find_element_by_name('textarea').send_keys(" ".join(str(i) for i in range(20)))
-    # browser.find_element_by_css_selector('[name="code"]').send_keys(" ".join(str(i) for i in range(10)))
-    Select(browser.find_element_by_name('select-multiple')).select_by_index(0)
+    if enable_percy:
+        percy_snapshot(browser, name='input group all')
+    browser.find_element(By.NAME, 'text').send_keys("name")
+    browser.find_element(By.NAME, 'number').send_keys("20")
+    browser.find_element(By.NAME, 'float').send_keys("3.1415")
+    browser.find_element(By.NAME, 'password').send_keys("password")
+    browser.find_element(By.NAME, 'textarea').send_keys(" ".join(str(i) for i in range(20)))
+    # browser.find_element(By.CSS_SELECTOR, '[name="code"]').send_keys(" ".join(str(i) for i in range(10)))
+    Select(browser.find_element(By.NAME, 'select-multiple')).select_by_index(0)
     # browser. find_element_by_css_selector('[name="select"]'). send_keys("name")
     # browser. find_element_by_css_selector('[name="checkbox-inline"]'). send_keys("name")
     # browser. find_element_by_css_selector('[name="checkbox"]'). send_keys("name")
     # browser. find_element_by_css_selector('[name="radio-inline"]'). send_keys("name")
     # browser. find_element_by_css_selector('[name="radio"]'). send_keys("name")
-    browser.find_element_by_name('file_upload').send_keys(path.join(here_dir, 'assets', 'helloworld.txt'))
+    browser.find_element(By.NAME, 'file_upload').send_keys(path.join(here_dir, 'assets', 'helloworld.txt'))
 
     browser.execute_script("$('form button').eq(1).click()")
     time.sleep(action_delay * 2)
     browser.execute_script('$("html, body").scrollTop( $(document).height()+100);')
     time.sleep(action_delay)
-    enable_percy and percySnapshot(browser, name='input group all invalid')
+    if enable_percy:
+        percy_snapshot(browser, name='input group all invalid')
 
-    browser.find_element_by_name('password').clear()
-    browser.find_element_by_name('password').send_keys("123")
+    browser.find_element(By.NAME, 'password').clear()
+    browser.find_element(By.NAME, 'password').send_keys("123")
     browser.execute_script("$('form button[type=\"submit\"]').eq(1).click()")
     time.sleep(action_delay * 2)
     browser.execute_script('$("html, body").scrollTop( $(document).height()+100);')
     time.sleep(action_delay * 2)
-    enable_percy and percySnapshot(browser, name='input group all submit')
+    if enable_percy:
+        percy_snapshot(browser, name='input group all submit')
 
-    browser.find_element_by_css_selector('form').submit()
+    browser.find_element(By.CSS_SELECTOR, 'form').submit()
 
     # background
     time.sleep(action_delay * 6)
-    get_visible_form(browser).find_element_by_css_selector('#input-container input').send_keys("background")
-    get_visible_form(browser).find_element_by_tag_name('form').submit()
+    get_visible_form(browser).find_element(By.CSS_SELECTOR, '#input-container input').send_keys("background")
+    get_visible_form(browser).find_element(By.TAG_NAME, 'form').submit()
     # front
     time.sleep(action_delay * 2)
-    get_visible_form(browser).find_element_by_css_selector('#input-container input').send_keys("front")
-    get_visible_form(browser).find_element_by_tag_name('form').submit()
+    get_visible_form(browser).find_element(By.CSS_SELECTOR, '#input-container input').send_keys("front")
+    get_visible_form(browser).find_element(By.TAG_NAME, 'form').submit()
 
 
 def set_defer_call():
@@ -754,7 +762,7 @@ def save_output(browser: Chrome, filename=None, process_func=None):
     :param process_func: 自定义数据处理函数
     :return: 处理前后的html文本
     """
-    raw_html = browser.find_element_by_id('markdown-body').get_attribute('innerHTML')
+    raw_html = browser.find_element(By.ID, 'markdown-body').get_attribute('innerHTML')
     html = re.sub(r'"pywebio-scope-.*?"', '', raw_html)
     html = re.sub(r'id="pywebio-.*?"', '', html)
     html = re.sub(r"\('pywebio-.*?'\)", '', html)
diff --git a/test/util.py b/test/util.py
index 9f63ba5c..8ed172bf 100644
--- a/test/util.py
+++ b/test/util.py
@@ -55,7 +55,7 @@ def run_test(server_func, test_func, address='http://localhost:8080?_pywebio_deb
 
     browser = None
     try:
-        browser = webdriver.Chrome(chrome_options=chrome_options)
+        browser = webdriver.Chrome(options=chrome_options)
         browser.set_window_size(1000, 900)
         port_str = urlparse(address).netloc.split(':', 1)[-1] or '80'
         asyncio.run(wait_host_port('localhost', int(port_str)))