diff --git a/poetry.lock b/poetry.lock
index 673272c..dd51247 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -670,21 +670,22 @@ python-versions = ">=3.5"
 
 [[package]]
 name = "mypy"
-version = "0.920"
+version = "0.940"
 description = "Optional static typing for Python"
 category = "dev"
 optional = false
 python-versions = ">=3.6"
 
 [package.dependencies]
-mypy-extensions = ">=0.4.3,<0.5.0"
-tomli = ">=1.1.0,<3.0.0"
+mypy-extensions = ">=0.4.3"
+tomli = ">=1.1.0"
 typed-ast = {version = ">=1.4.0,<2", markers = "python_version < \"3.8\""}
-typing-extensions = ">=3.7.4"
+typing-extensions = ">=3.10"
 
 [package.extras]
 dmypy = ["psutil (>=4.0)"]
 python2 = ["typed-ast (>=1.4.0,<2)"]
+reports = ["lxml"]
 
 [[package]]
 name = "mypy-extensions"
@@ -1282,7 +1283,7 @@ testing = ["pytest (>=4.6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytes
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.6"
-content-hash = "58f42add1d8304d3155745c00202ada2209279b43e8b83ffd7c787b536c8dc4d"
+content-hash = "b34746878ce59e96d0b85c62271ed9efcc7faa00789768df331dbe5525d4cab4"
 
 [metadata.files]
 aiocontextvars = [
@@ -1656,26 +1657,29 @@ more-itertools = [
     {file = "more_itertools-8.10.0-py3-none-any.whl", hash = "sha256:56ddac45541718ba332db05f464bebfb0768110111affd27f66e0051f276fa43"},
 ]
 mypy = [
-    {file = "mypy-0.920-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:41f3575b20714171c832d8f6c7aaaa0d499c9a2d1b8adaaf837b4c9065c38540"},
-    {file = "mypy-0.920-cp310-cp310-macosx_11_0_arm64.whl", hash = "sha256:431be889ffc8d9681813a45575c42e341c19467cbfa6dd09bf41467631feb530"},
-    {file = "mypy-0.920-cp310-cp310-manylinux_2_5_x86_64.manylinux1_x86_64.manylinux_2_12_x86_64.manylinux2010_x86_64.whl", hash = "sha256:f8b2059f73878e92eff7ed11a03515d6572f4338a882dd7547b5f7dd242118e6"},
-    {file = "mypy-0.920-cp310-cp310-win_amd64.whl", hash = "sha256:9cd316e9705555ca6a50670ba5fb0084d756d1d8cb1697c83820b1456b0bc5f3"},
-    {file = "mypy-0.920-cp36-cp36m-macosx_10_9_x86_64.whl", hash = "sha256:e091fe58b4475b3504dc7c3022ff7f4af2f9e9ddf7182047111759ed0973bbde"},
-    {file = "mypy-0.920-cp36-cp36m-manylinux_2_5_x86_64.manylinux1_x86_64.manylinux_2_12_x86_64.manylinux2010_x86_64.whl", hash = "sha256:98b4f91a75fed2e4c6339e9047aba95968d3a7c4b91e92ab9dc62c0c583564f4"},
-    {file = "mypy-0.920-cp36-cp36m-win_amd64.whl", hash = "sha256:562a0e335222d5bbf5162b554c3afe3745b495d67c7fe6f8b0d1b5bace0c1eeb"},
-    {file = "mypy-0.920-cp37-cp37m-macosx_10_9_x86_64.whl", hash = "sha256:618e677aabd21f30670bffb39a885a967337f5b112c6fb7c79375e6dced605d6"},
-    {file = "mypy-0.920-cp37-cp37m-manylinux_2_5_x86_64.manylinux1_x86_64.manylinux_2_12_x86_64.manylinux2010_x86_64.whl", hash = "sha256:40cb062f1b7ff4cd6e897a89d8ddc48c6ad7f326b5277c93a8c559564cc1551c"},
-    {file = "mypy-0.920-cp37-cp37m-win_amd64.whl", hash = "sha256:69b5a835b12fdbfeed84ef31152d41343d32ccb2b345256d8682324409164330"},
-    {file = "mypy-0.920-cp38-cp38-macosx_10_9_x86_64.whl", hash = "sha256:993c2e52ea9570e6e872296c046c946377b9f5e89eeb7afea2a1524cf6e50b27"},
-    {file = "mypy-0.920-cp38-cp38-macosx_11_0_arm64.whl", hash = "sha256:df0fec878ccfcb2d1d2306ba31aa757848f681e7bbed443318d9bbd4b0d0fe9a"},
-    {file = "mypy-0.920-cp38-cp38-manylinux_2_5_x86_64.manylinux1_x86_64.manylinux_2_12_x86_64.manylinux2010_x86_64.whl", hash = "sha256:331a81d2c9bf1be25317260a073b41f4584cd11701a7c14facef0aa5a005e843"},
-    {file = "mypy-0.920-cp38-cp38-win_amd64.whl", hash = "sha256:ffb1e57ec49a30e3c0ebcfdc910ae4aceb7afb649310b7355509df6b15bd75f6"},
-    {file = "mypy-0.920-cp39-cp39-macosx_10_9_x86_64.whl", hash = "sha256:31895b0b3060baf15bf76e789d94722c026f673b34b774bba9e8772295edccff"},
-    {file = "mypy-0.920-cp39-cp39-macosx_11_0_arm64.whl", hash = "sha256:140174e872d20d4768124a089b9f9fc83abd6a349b7f8cc6276bc344eb598922"},
-    {file = "mypy-0.920-cp39-cp39-manylinux_2_5_x86_64.manylinux1_x86_64.manylinux_2_12_x86_64.manylinux2010_x86_64.whl", hash = "sha256:13b3c110309b53f5a62aa1b360f598124be33a42563b790a2a9efaacac99f1fc"},
-    {file = "mypy-0.920-cp39-cp39-win_amd64.whl", hash = "sha256:82e6c15675264e923b60a11d6eb8f90665504352e68edfbb4a79aac7a04caddd"},
-    {file = "mypy-0.920-py3-none-any.whl", hash = "sha256:71c77bd885d2ce44900731d4652d0d1c174dc66a0f11200e0c680bdedf1a6b37"},
-    {file = "mypy-0.920.tar.gz", hash = "sha256:a55438627f5f546192f13255a994d6d1cf2659df48adcf966132b4379fd9c86b"},
+    {file = "mypy-0.940-cp310-cp310-macosx_10_9_universal2.whl", hash = "sha256:0fdc9191a49c77ab5fa0439915d405e80a1118b163ab03cd2a530f346b12566a"},
+    {file = "mypy-0.940-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:1903c92ff8642d521b4627e51a67e49f5be5aedb1fb03465b3aae4c3338ec491"},
+    {file = "mypy-0.940-cp310-cp310-macosx_11_0_arm64.whl", hash = "sha256:471af97c35a32061883b0f8a3305ac17947fd42ce962ca9e2b0639eb9141492f"},
+    {file = "mypy-0.940-cp310-cp310-manylinux_2_5_x86_64.manylinux1_x86_64.manylinux_2_12_x86_64.manylinux2010_x86_64.whl", hash = "sha256:13677cb8b050f03b5bb2e8bf7b2668cd918b001d56c2435082bbfc9d5f730f42"},
+    {file = "mypy-0.940-cp310-cp310-win_amd64.whl", hash = "sha256:2efd76893fb8327eca7e942e21b373e6f3c5c083ff860fb1e82ddd0462d662bd"},
+    {file = "mypy-0.940-cp36-cp36m-macosx_10_9_x86_64.whl", hash = "sha256:f8fe1bfab792e4300f80013edaf9949b34e4c056a7b2531b5ef3a0fb9d598ae2"},
+    {file = "mypy-0.940-cp36-cp36m-manylinux_2_5_x86_64.manylinux1_x86_64.manylinux_2_12_x86_64.manylinux2010_x86_64.whl", hash = "sha256:2dba92f58610d116f68ec1221fb2de2a346d081d17b24a784624389b17a4b3f9"},
+    {file = "mypy-0.940-cp36-cp36m-win_amd64.whl", hash = "sha256:712affcc456de637e774448c73e21c84dfa5a70bcda34e9b0be4fb898a9e8e07"},
+    {file = "mypy-0.940-cp37-cp37m-macosx_10_9_x86_64.whl", hash = "sha256:8aaf18d0f8bc3ffba56d32a85971dfbd371a5be5036da41ac16aefec440eff17"},
+    {file = "mypy-0.940-cp37-cp37m-manylinux_2_5_x86_64.manylinux1_x86_64.manylinux_2_12_x86_64.manylinux2010_x86_64.whl", hash = "sha256:51be997c1922e2b7be514a5215d1e1799a40832c0a0dee325ba8794f2c48818f"},
+    {file = "mypy-0.940-cp37-cp37m-win_amd64.whl", hash = "sha256:628f5513268ebbc563750af672ccba5eef7f92d2d90154233edd498dfb98ca4e"},
+    {file = "mypy-0.940-cp38-cp38-macosx_10_9_universal2.whl", hash = "sha256:68038d514ae59d5b2f326be502a359160158d886bd153fc2489dbf7a03c44c96"},
+    {file = "mypy-0.940-cp38-cp38-macosx_10_9_x86_64.whl", hash = "sha256:b2fa5f2d597478ccfe1f274f8da2f50ea1e63da5a7ae2342c5b3b2f3e57ec340"},
+    {file = "mypy-0.940-cp38-cp38-macosx_11_0_arm64.whl", hash = "sha256:b1a116c451b41e35afc09618f454b5c2704ba7a4e36f9ff65014fef26bb6075b"},
+    {file = "mypy-0.940-cp38-cp38-manylinux_2_5_x86_64.manylinux1_x86_64.manylinux_2_12_x86_64.manylinux2010_x86_64.whl", hash = "sha256:1f66f2309cdbb07e95e60e83fb4a8272095bd4ea6ee58bf9a70d5fb304ec3e3f"},
+    {file = "mypy-0.940-cp38-cp38-win_amd64.whl", hash = "sha256:3ac14949677ae9cb1adc498c423b194ad4d25b13322f6fe889fb72b664c79121"},
+    {file = "mypy-0.940-cp39-cp39-macosx_10_9_universal2.whl", hash = "sha256:6eab2bcc2b9489b7df87d7c20743b66d13254ad4d6430e1dfe1a655d51f0933d"},
+    {file = "mypy-0.940-cp39-cp39-macosx_10_9_x86_64.whl", hash = "sha256:0b52778a018559a256c819ee31b2e21e10b31ddca8705624317253d6d08dbc35"},
+    {file = "mypy-0.940-cp39-cp39-macosx_11_0_arm64.whl", hash = "sha256:d9d7647505bf427bc7931e8baf6cacf9be97e78a397724511f20ddec2a850752"},
+    {file = "mypy-0.940-cp39-cp39-manylinux_2_5_x86_64.manylinux1_x86_64.manylinux_2_12_x86_64.manylinux2010_x86_64.whl", hash = "sha256:a0e5657ccaedeb5fdfda59918cc98fc6d8a8e83041bc0cec347a2ab6915f9998"},
+    {file = "mypy-0.940-cp39-cp39-win_amd64.whl", hash = "sha256:83f66190e3c32603217105913fbfe0a3ef154ab6bbc7ef2c989f5b2957b55840"},
+    {file = "mypy-0.940-py3-none-any.whl", hash = "sha256:a168da06eccf51875fdff5f305a47f021f23f300e2b89768abdac24538b1f8ec"},
+    {file = "mypy-0.940.tar.gz", hash = "sha256:71bec3d2782d0b1fecef7b1c436253544d81c1c0e9ca58190aed9befd8f081c5"},
 ]
 mypy-extensions = [
     {file = "mypy_extensions-0.4.3-py2.py3-none-any.whl", hash = "sha256:090fedd75945a69ae91ce1303b5824f428daf5a028d2f6ab8a299250a846f15d"},
diff --git a/pyproject.toml b/pyproject.toml
index f36313f..1afb09a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -32,7 +32,7 @@ classifiers = [
 python = "^3.6"
 
 [tool.poetry.dev-dependencies]
-mypy = "^0.920"
+mypy = "^0.940"
 
 flake8 = "^3.9.2"
 wemake-python-styleguide = "^0.16"