diff --git a/poetry.lock b/poetry.lock
index 1980e53..b6f41ca 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -576,7 +576,7 @@ description = "Optional static typing for Python"
 name = "mypy"
 optional = false
 python-versions = ">=3.5"
-version = "0.780"
+version = "0.782"
 
 [package.dependencies]
 mypy-extensions = ">=0.4.3,<0.5.0"
@@ -1011,7 +1011,7 @@ testing = ["jaraco.itertools", "func-timeout"]
 docs = []
 
 [metadata]
-content-hash = "7d649ab247307a8e6eda26a2a5345b9ddf911d651366ceaa9d8d66fe18ce42b0"
+content-hash = "2b183640a99b691eed50b4783c82f079e872b15a612d0451041fa39cbe0f5874"
 python-versions = "^3.7"
 
 [metadata.files]
@@ -1265,20 +1265,20 @@ more-itertools = [
     {file = "more_itertools-8.3.0-py3-none-any.whl", hash = "sha256:7818f596b1e87be009031c7653d01acc46ed422e6656b394b0f765ce66ed4982"},
 ]
 mypy = [
-    {file = "mypy-0.780-cp35-cp35m-macosx_10_6_x86_64.whl", hash = "sha256:d3b4941de44341227ece1caaf5b08b23e42ad4eeb8b603219afb11e9d4cfb437"},
-    {file = "mypy-0.780-cp35-cp35m-manylinux1_x86_64.whl", hash = "sha256:1f3976a945ad7f0a0727aafdc5651c2d3278e3c88dee94e2bf75cd3386b7b2f4"},
-    {file = "mypy-0.780-cp35-cp35m-win_amd64.whl", hash = "sha256:eadb865126da4e3c4c95bdb47fe1bb087a3e3ea14d39a3b13224b8a4d9f9a102"},
-    {file = "mypy-0.780-cp36-cp36m-macosx_10_6_x86_64.whl", hash = "sha256:75eed74d2faf2759f79c5f56f17388defd2fc994222312ec54ee921e37b31ad4"},
-    {file = "mypy-0.780-cp36-cp36m-manylinux1_x86_64.whl", hash = "sha256:2f8c098f12b402c19b735aec724cc9105cc1a9eea405d08814eb4b14a6fb1a41"},
-    {file = "mypy-0.780-cp36-cp36m-win_amd64.whl", hash = "sha256:62eb5dd4ea86bda8ce386f26684f7f26e4bfe6283c9f2b6ca6d17faf704dcfad"},
-    {file = "mypy-0.780-cp37-cp37m-macosx_10_6_x86_64.whl", hash = "sha256:00cb1964a7476e871d6108341ac9c1a857d6bd20bf5877f4773ac5e9d92cd3cd"},
-    {file = "mypy-0.780-cp37-cp37m-manylinux1_x86_64.whl", hash = "sha256:974bebe3699b9b46278a7f076635d219183da26e1a675c1f8243a69221758273"},
-    {file = "mypy-0.780-cp37-cp37m-win_amd64.whl", hash = "sha256:64c36eb0936d0bfb7d8da49f92c18e312ad2e3ed46e5548ae4ca997b0d33bd59"},
-    {file = "mypy-0.780-cp38-cp38-macosx_10_9_x86_64.whl", hash = "sha256:d31291df31bafb997952dc0a17ebb2737f802c754aed31dd155a8bfe75112c57"},
-    {file = "mypy-0.780-cp38-cp38-manylinux1_x86_64.whl", hash = "sha256:a5e5bb12b7982b179af513dddb06fca12285f0316d74f3964078acbfcf4c68f2"},
-    {file = "mypy-0.780-cp38-cp38-win_amd64.whl", hash = "sha256:5d142f219bf8c7894dfa79ebfb7d352c4c63a325e75f10dfb4c3db9417dcd135"},
-    {file = "mypy-0.780-py3-none-any.whl", hash = "sha256:127de5a9b817a03a98c5ae8a0c46a20dc44442af6dcfa2ae7f96cb519b312efa"},
-    {file = "mypy-0.780.tar.gz", hash = "sha256:4ef13b619a289aa025f2273e05e755f8049bb4eaba6d703a425de37d495d178d"},
+    {file = "mypy-0.782-cp35-cp35m-macosx_10_6_x86_64.whl", hash = "sha256:2c6cde8aa3426c1682d35190b59b71f661237d74b053822ea3d748e2c9578a7c"},
+    {file = "mypy-0.782-cp35-cp35m-manylinux1_x86_64.whl", hash = "sha256:9c7a9a7ceb2871ba4bac1cf7217a7dd9ccd44c27c2950edbc6dc08530f32ad4e"},
+    {file = "mypy-0.782-cp35-cp35m-win_amd64.whl", hash = "sha256:c05b9e4fb1d8a41d41dec8786c94f3b95d3c5f528298d769eb8e73d293abc48d"},
+    {file = "mypy-0.782-cp36-cp36m-macosx_10_6_x86_64.whl", hash = "sha256:6731603dfe0ce4352c555c6284c6db0dc935b685e9ce2e4cf220abe1e14386fd"},
+    {file = "mypy-0.782-cp36-cp36m-manylinux1_x86_64.whl", hash = "sha256:f05644db6779387ccdb468cc47a44b4356fc2ffa9287135d05b70a98dc83b89a"},
+    {file = "mypy-0.782-cp36-cp36m-win_amd64.whl", hash = "sha256:b7fbfabdbcc78c4f6fc4712544b9b0d6bf171069c6e0e3cb82440dd10ced3406"},
+    {file = "mypy-0.782-cp37-cp37m-macosx_10_6_x86_64.whl", hash = "sha256:3fdda71c067d3ddfb21da4b80e2686b71e9e5c72cca65fa216d207a358827f86"},
+    {file = "mypy-0.782-cp37-cp37m-manylinux1_x86_64.whl", hash = "sha256:d7df6eddb6054d21ca4d3c6249cae5578cb4602951fd2b6ee2f5510ffb098707"},
+    {file = "mypy-0.782-cp37-cp37m-win_amd64.whl", hash = "sha256:a4a2cbcfc4cbf45cd126f531dedda8485671545b43107ded25ce952aac6fb308"},
+    {file = "mypy-0.782-cp38-cp38-macosx_10_9_x86_64.whl", hash = "sha256:6bb93479caa6619d21d6e7160c552c1193f6952f0668cdda2f851156e85186fc"},
+    {file = "mypy-0.782-cp38-cp38-manylinux1_x86_64.whl", hash = "sha256:81c7908b94239c4010e16642c9102bfc958ab14e36048fa77d0be3289dda76ea"},
+    {file = "mypy-0.782-cp38-cp38-win_amd64.whl", hash = "sha256:5dd13ff1f2a97f94540fd37a49e5d255950ebcdf446fb597463a40d0df3fac8b"},
+    {file = "mypy-0.782-py3-none-any.whl", hash = "sha256:e0b61738ab504e656d1fe4ff0c0601387a5489ca122d55390ade31f9ca0e252d"},
+    {file = "mypy-0.782.tar.gz", hash = "sha256:eff7d4a85e9eea55afa34888dfeaccde99e7520b51f867ac28a48492c0b1130c"},
 ]
 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 6d291e3..0fdbb10 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,7 +19,7 @@ isort = "^4.3.21"
 autoflake = "^1.3.1"
 # linters
 wemake-python-styleguide = "^0.14.0"
-mypy = "^0.780"
+mypy = "^0.782"
 # tests
 pytest = "5.3.5"
 pytest-cov = "^2.10.0"