diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index 22378c41..625ba90f 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Release History
 
+## 3.1.11 (2022-04-24)
+
+- fix #1273: ImportError by cannot import name '_unicodefun' from 'click'
+
 ## 3.1.10 (2022-04-18)
 
 - fix #1249: catch exceptions when requesting with disabling allow_redirects
diff --git a/httprunner/__init__.py b/httprunner/__init__.py
index 752c53d4..9ac4a0e5 100644
--- a/httprunner/__init__.py
+++ b/httprunner/__init__.py
@@ -1,8 +1,7 @@
-__version__ = "3.1.10"
+__version__ = "3.1.11"
 __description__ = "One-stop solution for HTTP(S) testing."
 
 # import firstly for monkey patch if needed
-from httprunner.ext.locust import main_locusts
 from httprunner.parser import parse_parameters as Parameters
 from httprunner.runner import HttpRunner
 from httprunner.testcase import Config, Step, RunRequest, RunTestCase
diff --git a/poetry.lock b/poetry.lock
index 611d2123..d5fea2f2 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -57,19 +57,6 @@ type = "legacy"
 url = "https://pypi.tuna.tsinghua.edu.cn/simple"
 reference = "tsinghua"
 
-[[package]]
-name = "appdirs"
-version = "1.4.4"
-description = "A small Python module for determining appropriate platform-specific dirs, e.g. a \"user data dir\"."
-category = "main"
-optional = false
-python-versions = "*"
-
-[package.source]
-type = "legacy"
-url = "https://pypi.tuna.tsinghua.edu.cn/simple"
-reference = "tsinghua"
-
 [[package]]
 name = "asgiref"
 version = "3.5.0"
@@ -123,23 +110,26 @@ reference = "tsinghua"
 
 [[package]]
 name = "black"
-version = "19.10b0"
+version = "22.3.0"
 description = "The uncompromising code formatter."
 category = "main"
 optional = false
-python-versions = ">=3.6"
+python-versions = ">=3.6.2"
 
 [package.dependencies]
-appdirs = "*"
-attrs = ">=18.1.0"
-click = ">=6.5"
-pathspec = ">=0.6,<1"
-regex = "*"
-toml = ">=0.9.4"
-typed-ast = ">=1.4.0"
+click = ">=8.0.0"
+mypy-extensions = ">=0.4.3"
+pathspec = ">=0.9.0"
+platformdirs = ">=2"
+tomli = {version = ">=1.1.0", markers = "python_version < \"3.11\""}
+typed-ast = {version = ">=1.4.2", markers = "python_version < \"3.8\" and implementation_name == \"cpython\""}
+typing-extensions = {version = ">=3.10.0.0", markers = "python_version < \"3.10\""}
 
 [package.extras]
-d = ["aiohttp (>=3.3.2)", "aiohttp-cors"]
+colorama = ["colorama (>=0.4.3)"]
+d = ["aiohttp (>=3.7.4)"]
+jupyter = ["ipython (>=7.8.0)", "tokenize-rt (>=3.2.0)"]
+uvloop = ["uvloop (>=0.15.2)"]
 
 [package.source]
 type = "legacy"
@@ -206,11 +196,15 @@ reference = "tsinghua"
 
 [[package]]
 name = "click"
-version = "7.1.2"
+version = "8.1.2"
 description = "Composable command line interface toolkit"
 category = "main"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+python-versions = ">=3.7"
+
+[package.dependencies]
+colorama = {version = "*", markers = "platform_system == \"Windows\""}
+importlib-metadata = {version = "*", markers = "python_version < \"3.8\""}
 
 [package.source]
 type = "legacy"
@@ -593,6 +587,19 @@ type = "legacy"
 url = "https://pypi.tuna.tsinghua.edu.cn/simple"
 reference = "tsinghua"
 
+[[package]]
+name = "mypy-extensions"
+version = "0.4.3"
+description = "Experimental type system extensions for programs checked with the mypy typechecker."
+category = "main"
+optional = false
+python-versions = "*"
+
+[package.source]
+type = "legacy"
+url = "https://pypi.tuna.tsinghua.edu.cn/simple"
+reference = "tsinghua"
+
 [[package]]
 name = "packaging"
 version = "21.3"
@@ -622,6 +629,23 @@ type = "legacy"
 url = "https://pypi.tuna.tsinghua.edu.cn/simple"
 reference = "tsinghua"
 
+[[package]]
+name = "platformdirs"
+version = "2.5.2"
+description = "A small Python module for determining appropriate platform-specific dirs, e.g. a \"user data dir\"."
+category = "main"
+optional = false
+python-versions = ">=3.7"
+
+[package.extras]
+docs = ["furo (>=2021.7.5b38)", "proselint (>=0.10.2)", "sphinx-autodoc-typehints (>=1.12)", "sphinx (>=4)"]
+test = ["appdirs (==1.4.4)", "pytest-cov (>=2.7)", "pytest-mock (>=3.6)", "pytest (>=6)"]
+
+[package.source]
+type = "legacy"
+url = "https://pypi.tuna.tsinghua.edu.cn/simple"
+reference = "tsinghua"
+
 [[package]]
 name = "pluggy"
 version = "0.13.1"
@@ -822,19 +846,6 @@ type = "legacy"
 url = "https://pypi.tuna.tsinghua.edu.cn/simple"
 reference = "tsinghua"
 
-[[package]]
-name = "regex"
-version = "2022.3.15"
-description = "Alternative regular expression module, to replace re."
-category = "main"
-optional = false
-python-versions = ">=3.6"
-
-[package.source]
-type = "legacy"
-url = "https://pypi.tuna.tsinghua.edu.cn/simple"
-reference = "tsinghua"
-
 [[package]]
 name = "requests"
 version = "2.27.1"
@@ -951,19 +962,6 @@ type = "legacy"
 url = "https://pypi.tuna.tsinghua.edu.cn/simple"
 reference = "tsinghua"
 
-[[package]]
-name = "toml"
-version = "0.10.2"
-description = "Python Library for Tom's Obvious, Minimal Language"
-category = "main"
-optional = false
-python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
-
-[package.source]
-type = "legacy"
-url = "https://pypi.tuna.tsinghua.edu.cn/simple"
-reference = "tsinghua"
-
 [[package]]
 name = "tomli"
 version = "2.0.1"
@@ -1135,7 +1133,7 @@ upload = ["requests-toolbelt", "filetype"]
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.7"
-content-hash = "32778bf7f65f9a923dbb14acc6d0818863787fc70266b78f61bc03738181f47d"
+content-hash = "8f55e2b7cbfba3560a6b879e59678b4ad1d34b855947054d0afeefd0e826a400"
 
 [metadata.files]
 allure-pytest = [
@@ -1150,10 +1148,6 @@ anyio = [
     {file = "anyio-3.5.0-py3-none-any.whl", hash = "sha256:b5fa16c5ff93fa1046f2eeb5bbff2dad4d3514d6cda61d02816dba34fa8c3c2e"},
     {file = "anyio-3.5.0.tar.gz", hash = "sha256:a0aeffe2fb1fdf374a8e4b471444f0f3ac4fb9f5a5b542b48824475e0042a5a6"},
 ]
-appdirs = [
-    {file = "appdirs-1.4.4-py2.py3-none-any.whl", hash = "sha256:a841dacd6b99318a741b166adb07e19ee71a274450e68237b4650ca1055ab128"},
-    {file = "appdirs-1.4.4.tar.gz", hash = "sha256:7d5d0167b2b1ba821647616af46a749d1c653740dd0d2415100fe26e27afdf41"},
-]
 asgiref = [
     {file = "asgiref-3.5.0-py3-none-any.whl", hash = "sha256:88d59c13d634dcffe0510be048210188edd79aeccb6a6c9028cdad6f31d730a9"},
     {file = "asgiref-3.5.0.tar.gz", hash = "sha256:2f8abc20f7248433085eda803936d98992f1343ddb022065779f37c5da0181d0"},
@@ -1167,8 +1161,29 @@ attrs = [
     {file = "attrs-21.4.0.tar.gz", hash = "sha256:626ba8234211db98e869df76230a137c4c40a12d72445c45d5f5b716f076e2fd"},
 ]
 black = [
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-    {file = "black-19.10b0.tar.gz", hash = "sha256:c2edb73a08e9e0e6f65a0e6af18b059b8b1cdd5bef997d7a0b181df93dc81539"},
+    {file = "black-22.3.0-cp310-cp310-macosx_10_9_universal2.whl", hash = "sha256:2497f9c2386572e28921fa8bec7be3e51de6801f7459dffd6e62492531c47e09"},
+    {file = "black-22.3.0-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:5795a0375eb87bfe902e80e0c8cfaedf8af4d49694d69161e5bd3206c18618bb"},
+    {file = "black-22.3.0-cp310-cp310-macosx_11_0_arm64.whl", hash = "sha256:e3556168e2e5c49629f7b0f377070240bd5511e45e25a4497bb0073d9dda776a"},
+    {file = "black-22.3.0-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:67c8301ec94e3bcc8906740fe071391bce40a862b7be0b86fb5382beefecd968"},
+    {file = "black-22.3.0-cp310-cp310-win_amd64.whl", hash = "sha256:fd57160949179ec517d32ac2ac898b5f20d68ed1a9c977346efbac9c2f1e779d"},
+    {file = "black-22.3.0-cp36-cp36m-macosx_10_9_x86_64.whl", hash = "sha256:cc1e1de68c8e5444e8f94c3670bb48a2beef0e91dddfd4fcc29595ebd90bb9ce"},
+    {file = "black-22.3.0-cp36-cp36m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:6d2fc92002d44746d3e7db7cf9313cf4452f43e9ea77a2c939defce3b10b5c82"},
+    {file = "black-22.3.0-cp36-cp36m-win_amd64.whl", hash = "sha256:a6342964b43a99dbc72f72812bf88cad8f0217ae9acb47c0d4f141a6416d2d7b"},
+    {file = "black-22.3.0-cp37-cp37m-macosx_10_9_x86_64.whl", hash = "sha256:328efc0cc70ccb23429d6be184a15ce613f676bdfc85e5fe8ea2a9354b4e9015"},
+    {file = "black-22.3.0-cp37-cp37m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:06f9d8846f2340dfac80ceb20200ea5d1b3f181dd0556b47af4e8e0b24fa0a6b"},
+    {file = "black-22.3.0-cp37-cp37m-win_amd64.whl", hash = "sha256:ad4efa5fad66b903b4a5f96d91461d90b9507a812b3c5de657d544215bb7877a"},
+    {file = "black-22.3.0-cp38-cp38-macosx_10_9_universal2.whl", hash = "sha256:e8477ec6bbfe0312c128e74644ac8a02ca06bcdb8982d4ee06f209be28cdf163"},
+    {file = "black-22.3.0-cp38-cp38-macosx_10_9_x86_64.whl", hash = "sha256:637a4014c63fbf42a692d22b55d8ad6968a946b4a6ebc385c5505d9625b6a464"},
+    {file = "black-22.3.0-cp38-cp38-macosx_11_0_arm64.whl", hash = "sha256:863714200ada56cbc366dc9ae5291ceb936573155f8bf8e9de92aef51f3ad0f0"},
+    {file = "black-22.3.0-cp38-cp38-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:10dbe6e6d2988049b4655b2b739f98785a884d4d6b85bc35133a8fb9a2233176"},
+    {file = "black-22.3.0-cp38-cp38-win_amd64.whl", hash = "sha256:cee3e11161dde1b2a33a904b850b0899e0424cc331b7295f2a9698e79f9a69a0"},
+    {file = "black-22.3.0-cp39-cp39-macosx_10_9_universal2.whl", hash = "sha256:5891ef8abc06576985de8fa88e95ab70641de6c1fca97e2a15820a9b69e51b20"},
+    {file = "black-22.3.0-cp39-cp39-macosx_10_9_x86_64.whl", hash = "sha256:30d78ba6bf080eeaf0b7b875d924b15cd46fec5fd044ddfbad38c8ea9171043a"},
+    {file = "black-22.3.0-cp39-cp39-macosx_11_0_arm64.whl", hash = "sha256:ee8f1f7228cce7dffc2b464f07ce769f478968bfb3dd1254a4c2eeed84928aad"},
+    {file = "black-22.3.0-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:6ee227b696ca60dd1c507be80a6bc849a5a6ab57ac7352aad1ffec9e8b805f21"},
+    {file = "black-22.3.0-cp39-cp39-win_amd64.whl", hash = "sha256:9b542ced1ec0ceeff5b37d69838106a6348e60db7b8fdd245294dc1d26136265"},
+    {file = "black-22.3.0-py3-none-any.whl", hash = "sha256:bc58025940a896d7e5356952228b68f793cf5fcb342be703c3a2669a1488cb72"},
+    {file = "black-22.3.0.tar.gz", hash = "sha256:35020b8886c022ced9282b51b5a875b6d1ab0c387b31a065b84db7c33085ca79"},
 ]
 brotli = [
     {file = "Brotli-1.0.9-cp27-cp27m-macosx_10_9_x86_64.whl", hash = "sha256:268fe94547ba25b58ebc724680609c8ee3e5a843202e9a381f6f9c5e8bdb5c70"},
@@ -1280,8 +1295,8 @@ charset-normalizer = [
     {file = "charset_normalizer-2.0.12-py3-none-any.whl", hash = "sha256:6881edbebdb17b39b4eaaa821b438bf6eddffb4468cf344f09f89def34a8b1df"},
 ]
 click = [
-    {file = "click-7.1.2-py2.py3-none-any.whl", hash = "sha256:dacca89f4bfadd5de3d7489b7c8a566eee0d3676333fbb50030263894c38c0dc"},
-    {file = "click-7.1.2.tar.gz", hash = "sha256:d2b5255c7c6349bc1bd1e59e08cd12acbbd63ce649f2588755783aa94dfb6b1a"},
+    {file = "click-8.1.2-py3-none-any.whl", hash = "sha256:24e1a4a9ec5bf6299411369b208c1df2188d9eb8d916302fe6bf03faed227f1e"},
+    {file = "click-8.1.2.tar.gz", hash = "sha256:479707fe14d9ec9a0757618b7a100a0ae4c4e236fac5b7f80ca68028141a1a72"},
 ]
 colorama = [
     {file = "colorama-0.4.4-py2.py3-none-any.whl", hash = "sha256:9f47eda37229f68eee03b24b9748937c7dc3868f906e8ba69fbcbdd3bc5dc3e2"},
@@ -1594,6 +1609,10 @@ msgpack = [
     {file = "msgpack-1.0.3-cp39-cp39-win_amd64.whl", hash = "sha256:f01b26c2290cbd74316990ba84a14ac3d599af9cebefc543d241a66e785cf17d"},
     {file = "msgpack-1.0.3.tar.gz", hash = "sha256:51fdc7fb93615286428ee7758cecc2f374d5ff363bdd884c7ea622a7a327a81e"},
 ]
+mypy-extensions = [
+    {file = "mypy_extensions-0.4.3-py2.py3-none-any.whl", hash = "sha256:090fedd75945a69ae91ce1303b5824f428daf5a028d2f6ab8a299250a846f15d"},
+    {file = "mypy_extensions-0.4.3.tar.gz", hash = "sha256:2d82818f5bb3e369420cb3c4060a7970edba416647068eb4c5343488a6c604a8"},
+]
 packaging = [
     {file = "packaging-21.3-py3-none-any.whl", hash = "sha256:ef103e05f519cdc783ae24ea4e2e0f508a9c99b2d4969652eed6a2e1ea5bd522"},
     {file = "packaging-21.3.tar.gz", hash = "sha256:dd47c42927d89ab911e606518907cc2d3a1f38bbd026385970643f9c5b8ecfeb"},
@@ -1602,6 +1621,10 @@ pathspec = [
     {file = "pathspec-0.9.0-py2.py3-none-any.whl", hash = "sha256:7d15c4ddb0b5c802d161efc417ec1a2558ea2653c2e8ad9c19098201dc1c993a"},
     {file = "pathspec-0.9.0.tar.gz", hash = "sha256:e564499435a2673d586f6b2130bb5b95f04a3ba06f81b8f895b651a3c76aabb1"},
 ]
+platformdirs = [
+    {file = "platformdirs-2.5.2-py3-none-any.whl", hash = "sha256:027d8e83a2d7de06bbac4e5ef7e023c02b863d7ea5d079477e722bb41ab25788"},
+    {file = "platformdirs-2.5.2.tar.gz", hash = "sha256:58c8abb07dcb441e6ee4b11d8df0ac856038f944ab98b7be6b27b2a3c7feef19"},
+]
 pluggy = [
     {file = "pluggy-0.13.1-py2.py3-none-any.whl", hash = "sha256:966c145cd83c96502c3c3868f50408687b38434af77734af1e9ca461a4081d2d"},
     {file = "pluggy-0.13.1.tar.gz", hash = "sha256:15b2acde666561e1298d71b523007ed7364de07029219b604cf808bfa1c765b0"},
@@ -1782,82 +1805,6 @@ pyzmq = [
     {file = "pyzmq-22.3.0-pp37-pypy37_pp73-win_amd64.whl", hash = "sha256:d6157793719de168b199194f6b6173f0ccd3bf3499e6870fac17086072e39115"},
     {file = "pyzmq-22.3.0.tar.gz", hash = "sha256:8eddc033e716f8c91c6a2112f0a8ebc5e00532b4a6ae1eb0ccc48e027f9c671c"},
 ]
-regex = [
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-    {file = "regex-2022.3.15-cp310-cp310-macosx_11_0_arm64.whl", hash = "sha256:9beb03ff6fe509d6455971c2489dceb31687b38781206bcec8e68bdfcf5f1db2"},
-    {file = "regex-2022.3.15-cp310-cp310-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:d0a5a1fdc9f148a8827d55b05425801acebeeefc9e86065c7ac8b8cc740a91ff"},
-    {file = "regex-2022.3.15-cp310-cp310-manylinux_2_17_ppc64le.manylinux2014_ppc64le.whl", hash = "sha256:cb374a2a4dba7c4be0b19dc7b1adc50e6c2c26c3369ac629f50f3c198f3743a4"},
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-    {file = "regex-2022.3.15.tar.gz", hash = "sha256:0a7b75cc7bb4cc0334380053e4671c560e31272c9d2d5a6c4b8e9ae2c9bd0f82"},
-]
 requests = [
     {file = "requests-2.27.1-py2.py3-none-any.whl", hash = "sha256:f22fa1e554c9ddfd16e6e41ac79759e17be9e492b3587efa038054674760e72d"},
     {file = "requests-2.27.1.tar.gz", hash = "sha256:68d7c56fd5a8999887728ef304a6d12edc7be74f1cfa47714fc8b414525c9a61"},
@@ -1882,10 +1829,6 @@ starlette = [
     {file = "starlette-0.16.0-py3-none-any.whl", hash = "sha256:38eb24bf705a2c317e15868e384c1b8a12ca396e5a3c3a003db7e667c43f939f"},
     {file = "starlette-0.16.0.tar.gz", hash = "sha256:e1904b5d0007aee24bdd3c43994be9b3b729f4f58e740200de1d623f8c3a8870"},
 ]
-toml = [
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-    {file = "toml-0.10.2.tar.gz", hash = "sha256:b3bda1d108d5dd99f4a20d24d9c348e91c4db7ab1b749200bded2f839ccbe68f"},
-]
 tomli = [
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     {file = "tomli-2.0.1.tar.gz", hash = "sha256:de526c12914f0c550d15924c62d72abc48d6fe7364aa87328337a31007fe8a4f"},
diff --git a/pyproject.toml b/pyproject.toml
index ccda2aec..dfd4d0be 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "httprunner"
-version = "3.1.10"
+version = "3.1.11"
 description = "One-stop solution for HTTP(S) testing."
 license = "Apache-2.0"
 readme = "docs/README.md"
@@ -35,7 +35,6 @@ pyyaml = "^5.4.1"
 pydantic = "~1.8"   # >=1.8.0 <1.9.0
 loguru = "^0.4.1"
 jmespath = "^0.9.5"
-black = "^19.10b0"
 pytest = "^7.1.1"
 pytest-html = "^3.1.1"
 sentry-sdk = "^0.14.4"
@@ -45,6 +44,7 @@ filetype = {version = "^1.0.7", optional = true}
 locust = {version = "^1.0.3", optional = true}
 Brotli = "^1.0.9"
 jinja2 = "^3.0.3"
+black = "^22.3.0"
 
 [tool.poetry.extras]
 allure = ["allure-pytest"]                  # pip install "httprunner[allure]", poetry install -E allure