diff --git a/poetry.lock b/poetry.lock
index 80a1f6a..d7240c3 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -80,7 +80,7 @@ description = "Optional static typing for Python"
 name = "mypy"
 optional = false
 python-versions = ">=3.5"
-version = "0.761"
+version = "0.780"
 
 [package.dependencies]
 mypy-extensions = ">=0.4.3,<0.5.0"
@@ -216,7 +216,7 @@ python-versions = "*"
 version = "0.1.8"
 
 [metadata]
-content-hash = "50fc44b1978e47da45606d65ed77103e2d62cd13c33fd7a77175c7346a715621"
+content-hash = "c88db169c32fe2c39763022715990c95d2ee22073c34f9b5398622d787595338"
 python-versions = "^3.8"
 
 [metadata.files]
@@ -249,20 +249,20 @@ more-itertools = [
     {file = "more_itertools-8.1.0-py3-none-any.whl", hash = "sha256:1a2a32c72400d365000412fe08eb4a24ebee89997c18d3d147544f70f5403b39"},
 ]
 mypy = [
-    {file = "mypy-0.761-cp35-cp35m-macosx_10_6_x86_64.whl", hash = "sha256:7f672d02fffcbace4db2b05369142e0506cdcde20cea0e07c7c2171c4fd11dd6"},
-    {file = "mypy-0.761-cp35-cp35m-manylinux1_x86_64.whl", hash = "sha256:87c556fb85d709dacd4b4cb6167eecc5bbb4f0a9864b69136a0d4640fdc76a36"},
-    {file = "mypy-0.761-cp35-cp35m-win_amd64.whl", hash = "sha256:c6d27bd20c3ba60d5b02f20bd28e20091d6286a699174dfad515636cb09b5a72"},
-    {file = "mypy-0.761-cp36-cp36m-macosx_10_6_x86_64.whl", hash = "sha256:4b9365ade157794cef9685791032521233729cb00ce76b0ddc78749abea463d2"},
-    {file = "mypy-0.761-cp36-cp36m-manylinux1_x86_64.whl", hash = "sha256:634aef60b4ff0f650d3e59d4374626ca6153fcaff96ec075b215b568e6ee3cb0"},
-    {file = "mypy-0.761-cp36-cp36m-win_amd64.whl", hash = "sha256:53ea810ae3f83f9c9b452582261ea859828a9ed666f2e1ca840300b69322c474"},
-    {file = "mypy-0.761-cp37-cp37m-macosx_10_6_x86_64.whl", hash = "sha256:0a9a45157e532da06fe56adcfef8a74629566b607fa2c1ac0122d1ff995c748a"},
-    {file = "mypy-0.761-cp37-cp37m-manylinux1_x86_64.whl", hash = "sha256:7eadc91af8270455e0d73565b8964da1642fe226665dd5c9560067cd64d56749"},
-    {file = "mypy-0.761-cp37-cp37m-win_amd64.whl", hash = "sha256:e2bb577d10d09a2d8822a042a23b8d62bc3b269667c9eb8e60a6edfa000211b1"},
-    {file = "mypy-0.761-cp38-cp38-macosx_10_9_x86_64.whl", hash = "sha256:2c35cae79ceb20d47facfad51f952df16c2ae9f45db6cb38405a3da1cf8fc0a7"},
-    {file = "mypy-0.761-cp38-cp38-manylinux1_x86_64.whl", hash = "sha256:f97a605d7c8bc2c6d1172c2f0d5a65b24142e11a58de689046e62c2d632ca8c1"},
-    {file = "mypy-0.761-cp38-cp38-win_amd64.whl", hash = "sha256:a6bd44efee4dc8c3324c13785a9dc3519b3ee3a92cada42d2b57762b7053b49b"},
-    {file = "mypy-0.761-py3-none-any.whl", hash = "sha256:7e396ce53cacd5596ff6d191b47ab0ea18f8e0ec04e15d69728d530e86d4c217"},
-    {file = "mypy-0.761.tar.gz", hash = "sha256:85baab8d74ec601e86134afe2bcccd87820f79d2f8d5798c889507d1088287bf"},
+    {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"},
 ]
 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 7627251..0e4c599 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,7 +10,7 @@ python = "^3.8"
 Click = "^7.0"
 
 [tool.poetry.dev-dependencies]
-mypy = "^0.761"
+mypy = "^0.780"
 black = "^19.10b0"
 pytest = "^5.3.4"