diff --git a/poetry.lock b/poetry.lock
index 5c2f155..11a5efe 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -180,6 +180,14 @@ zipp = ">=0.5"
 docs = ["sphinx", "rst.linker"]
 testing = ["packaging", "importlib-resources"]
 
+[[package]]
+category = "dev"
+description = "iniconfig: brain-dead simple config-ini parsing"
+name = "iniconfig"
+optional = false
+python-versions = "*"
+version = "1.0.1"
+
 [[package]]
 category = "main"
 description = "A small but fast and easy to use stand-alone template engine written in pure python."
@@ -292,7 +300,7 @@ description = "library with cross-python path, ini-parsing, io, code, log facili
 name = "py"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "1.8.1"
+version = "1.9.0"
 
 [[package]]
 category = "main"
@@ -316,17 +324,18 @@ description = "pytest: simple powerful testing with Python"
 name = "pytest"
 optional = false
 python-versions = ">=3.5"
-version = "5.4.2"
+version = "6.0.1"
 
 [package.dependencies]
 atomicwrites = ">=1.0"
 attrs = ">=17.4.0"
 colorama = "*"
+iniconfig = "*"
 more-itertools = ">=4.0.0"
 packaging = "*"
 pluggy = ">=0.12,<1.0"
-py = ">=1.5.0"
-wcwidth = "*"
+py = ">=1.8.2"
+toml = "*"
 
 [package.dependencies.importlib-metadata]
 python = "<3.8"
@@ -337,7 +346,7 @@ python = "<3.6"
 version = ">=2.2.0"
 
 [package.extras]
-checkqa-mypy = ["mypy (v0.761)"]
+checkqa_mypy = ["mypy (0.780)"]
 testing = ["argcomplete", "hypothesis (>=3.56)", "mock", "nose", "requests", "xmlschema"]
 
 [[package]]
@@ -401,7 +410,6 @@ version = "1.14.0"
 [[package]]
 category = "dev"
 description = "Python Library for Tom's Obvious, Minimal Language"
-marker = "python_version >= \"3.6\" and python_version < \"4.0\""
 name = "toml"
 optional = false
 python-versions = "*"
@@ -461,14 +469,6 @@ PyYAML = ">=3.09"
 argh = ">=0.8.1"
 pathtools = ">=0.1.1"
 
-[[package]]
-category = "dev"
-description = "Measures number of Terminal column cells of wide-character codes"
-name = "wcwidth"
-optional = false
-python-versions = "*"
-version = "0.1.9"
-
 [[package]]
 category = "dev"
 description = "Backport of pathlib-compatible object wrapper for zip files"
@@ -483,7 +483,8 @@ docs = ["sphinx", "jaraco.packaging (>=3.2)", "rst.linker (>=1.9)"]
 testing = ["pathlib2", "unittest2", "jaraco.itertools", "func-timeout"]
 
 [metadata]
-content-hash = "6c173080253c3ac650e495adec1d08a47017f750723521edbae94e596b0ebd48"
+content-hash = "8a4d20aede1c22d68cc41077b1258db5f5de1a25a46679cbbf41b7ab88e46b74"
+lock-version = "1.0"
 python-versions = "^3.5"
 
 [metadata.files]
@@ -581,6 +582,10 @@ importlib-metadata = [
     {file = "importlib_metadata-1.6.0-py2.py3-none-any.whl", hash = "sha256:2a688cbaa90e0cc587f1df48bdc97a6eadccdcd9c35fb3f976a09e3b5016d90f"},
     {file = "importlib_metadata-1.6.0.tar.gz", hash = "sha256:34513a8a0c4962bc66d35b359558fd8a5e10cd472d37aec5f66858addef32c1e"},
 ]
+iniconfig = [
+    {file = "iniconfig-1.0.1-py3-none-any.whl", hash = "sha256:80cf40c597eb564e86346103f609d74efce0f6b4d4f30ec8ce9e2c26411ba437"},
+    {file = "iniconfig-1.0.1.tar.gz", hash = "sha256:e5f92f89355a67de0595932a6c6c02ab4afddc6fcdc0bfc5becd0d60884d3f69"},
+]
 jinja2 = [
     {file = "Jinja2-2.7.2.tar.gz", hash = "sha256:310a35fbccac3af13ebf927297f871ac656b9da1d248b1fe6765affa71b53235"},
 ]
@@ -650,8 +655,8 @@ pluggy = [
     {file = "pluggy-0.13.1.tar.gz", hash = "sha256:15b2acde666561e1298d71b523007ed7364de07029219b604cf808bfa1c765b0"},
 ]
 py = [
-    {file = "py-1.8.1-py2.py3-none-any.whl", hash = "sha256:c20fdd83a5dbc0af9efd622bee9a5564e278f6380fffcacc43ba6f43db2813b0"},
-    {file = "py-1.8.1.tar.gz", hash = "sha256:5e27081401262157467ad6e7f851b7aa402c5852dbcb3dae06768434de5752aa"},
+    {file = "py-1.9.0-py2.py3-none-any.whl", hash = "sha256:366389d1db726cd2fcfc79732e75410e5fe4d31db13692115529d34069a043c2"},
+    {file = "py-1.9.0.tar.gz", hash = "sha256:9ca6883ce56b4e8da7e79ac18787889fa5206c79dcc67fb065376cd2fe03f342"},
 ]
 pygments = [
     {file = "Pygments-1.6-py2.6.egg", hash = "sha256:8f2d2fcef78d32292be95f460fcab6ebe65273a59cda6042fa4657e491b69d14"},
@@ -663,8 +668,8 @@ pyparsing = [
     {file = "pyparsing-2.4.7.tar.gz", hash = "sha256:c203ec8783bf771a155b207279b9bccb8dea02d8f0c9e5f8ead507bc3246ecc1"},
 ]
 pytest = [
-    {file = "pytest-5.4.2-py3-none-any.whl", hash = "sha256:95c710d0a72d91c13fae35dce195633c929c3792f54125919847fdcdf7caa0d3"},
-    {file = "pytest-5.4.2.tar.gz", hash = "sha256:eb2b5e935f6a019317e455b6da83dd8650ac9ffd2ee73a7b657a30873d67a698"},
+    {file = "pytest-6.0.1-py3-none-any.whl", hash = "sha256:8b6007800c53fdacd5a5c192203f4e531eb2a1540ad9c752e052ec0f7143dbad"},
+    {file = "pytest-6.0.1.tar.gz", hash = "sha256:85228d75db9f45e06e57ef9bf4429267f81ac7c0d742cc9ed63d09886a9fe6f4"},
 ]
 pytest-cov = [
     {file = "pytest-cov-2.8.1.tar.gz", hash = "sha256:cc6742d8bac45070217169f5f72ceee1e0e55b0221f54bcf24845972d3a47f2b"},
@@ -707,6 +712,7 @@ regex = [
     {file = "regex-2020.5.14.tar.gz", hash = "sha256:ce450ffbfec93821ab1fea94779a8440e10cf63819be6e176eb1973a6017aff5"},
 ]
 requests = [
+    {file = "requests-2.23.0-py2.7.egg", hash = "sha256:5d2d0ffbb515f39417009a46c14256291061ac01ba8f875b90cad137de83beb4"},
     {file = "requests-2.23.0-py2.py3-none-any.whl", hash = "sha256:43999036bfa82904b6af1d99e4882b560e5e2c68e5c4b0aa03b655f3d7d73fee"},
     {file = "requests-2.23.0.tar.gz", hash = "sha256:b3f43d496c6daba4493e7c431722aeb7dbc6288f52a6e04e7b6023b0247817e6"},
 ]
@@ -760,10 +766,6 @@ urllib3 = [
 watchdog = [
     {file = "watchdog-0.7.0.tar.gz", hash = "sha256:8d89934fede6ec0dfe4d128606e36b989ba0b27b6cf74bd042b818b554625240"},
 ]
-wcwidth = [
-    {file = "wcwidth-0.1.9-py2.py3-none-any.whl", hash = "sha256:cafe2186b3c009a04067022ce1dcd79cb38d8d65ee4f4791b8888d6599d1bbe1"},
-    {file = "wcwidth-0.1.9.tar.gz", hash = "sha256:ee73862862a156bf77ff92b09034fc4825dd3af9cf81bc5b360668d425f3c5f1"},
-]
 zipp = [
     {file = "zipp-1.2.0-py2.py3-none-any.whl", hash = "sha256:e0d9e63797e483a30d27e09fffd308c59a700d365ec34e93cc100844168bf921"},
     {file = "zipp-1.2.0.tar.gz", hash = "sha256:c70410551488251b0fee67b460fb9a536af8d6f9f008ad10ac51f615b6a521b1"},
diff --git a/pyproject.toml b/pyproject.toml
index c560ae8..7c1489e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,7 +26,7 @@ watchdog = "==0.7.0"
 pyyaml = "^5.3"
 
 [tool.poetry.dev-dependencies]
-pytest = "^5.4.2"
+pytest = "^6.0.1"
 pytest-cov = "^2.8.1"
 coveralls = "^1.11.1"
 black = {version = "^19.10b0", python = "^3.6"}