diff --git a/poetry.lock b/poetry.lock
index 4402fd5..01a3daa 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -203,7 +203,7 @@ python-versions = ">=3.4.1"
 
 [[package]]
 name = "mypy"
-version = "0.782"
+version = "0.812"
 description = "Optional static typing for Python"
 category = "dev"
 optional = false
@@ -636,20 +636,28 @@ multidict = [
     {file = "multidict-4.5.2.tar.gz", hash = "sha256:024b8129695a952ebd93373e45b5d341dbb87c17ce49637b34000093f243dd4f"},
 ]
 mypy = [
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-    {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"},
+    {file = "mypy-0.812-cp35-cp35m-macosx_10_9_x86_64.whl", hash = "sha256:a26f8ec704e5a7423c8824d425086705e381b4f1dfdef6e3a1edab7ba174ec49"},
+    {file = "mypy-0.812-cp35-cp35m-manylinux1_x86_64.whl", hash = "sha256:28fb5479c494b1bab244620685e2eb3c3f988d71fd5d64cc753195e8ed53df7c"},
+    {file = "mypy-0.812-cp35-cp35m-manylinux2010_x86_64.whl", hash = "sha256:9743c91088d396c1a5a3c9978354b61b0382b4e3c440ce83cf77994a43e8c521"},
+    {file = "mypy-0.812-cp35-cp35m-win_amd64.whl", hash = "sha256:d7da2e1d5f558c37d6e8c1246f1aec1e7349e4913d8fb3cb289a35de573fe2eb"},
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+    {file = "mypy-0.812-cp37-cp37m-manylinux1_x86_64.whl", hash = "sha256:499c798053cdebcaa916eef8cd733e5584b5909f789de856b482cd7d069bdad8"},
+    {file = "mypy-0.812-cp37-cp37m-manylinux2010_x86_64.whl", hash = "sha256:5873888fff1c7cf5b71efbe80e0e73153fe9212fafdf8e44adfe4c20ec9f82d7"},
+    {file = "mypy-0.812-cp37-cp37m-win_amd64.whl", hash = "sha256:9f94aac67a2045ec719ffe6111df543bac7874cee01f41928f6969756e030564"},
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+    {file = "mypy-0.812.tar.gz", hash = "sha256:cd07039aa5df222037005b08fbbfd69b3ab0b0bd7a07d7906de75ae52c4e3119"},
 ]
 mypy-extensions = [
     {file = "mypy_extensions-0.4.3-py2.py3-none-any.whl", hash = "sha256:090fedd75945a69ae91ce1303b5824f428daf5a028d2f6ab8a299250a846f15d"},