diff --git a/poetry.lock b/poetry.lock
index 59c3236d..fcfe395f 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -3,7 +3,7 @@ name = "appnope"
 version = "0.1.2"
 description = "Disable App Nap on macOS >= 10.9"
 category = "main"
-optional = false
+optional = true
 python-versions = "*"
 
 [[package]]
@@ -74,7 +74,7 @@ name = "backcall"
 version = "0.2.0"
 description = "Specifications for callback functions passed in to an API"
 category = "main"
-optional = false
+optional = true
 python-versions = "*"
 
 [[package]]
@@ -195,7 +195,7 @@ name = "decorator"
 version = "5.1.0"
 description = "Decorators for Humans"
 category = "main"
-optional = false
+optional = true
 python-versions = ">=3.5"
 
 [[package]]
@@ -309,7 +309,7 @@ name = "ipython"
 version = "7.16.3"
 description = "IPython: Productive Interactive Computing"
 category = "main"
-optional = false
+optional = true
 python-versions = ">=3.6"
 
 [package.dependencies]
@@ -340,7 +340,7 @@ name = "ipython-genutils"
 version = "0.2.0"
 description = "Vestigial utilities from IPython"
 category = "main"
-optional = false
+optional = true
 python-versions = "*"
 
 [[package]]
@@ -368,7 +368,7 @@ name = "jedi"
 version = "0.17.2"
 description = "An autocompletion tool for Python that can be used for text editors."
 category = "main"
-optional = false
+optional = true
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 
 [package.dependencies]
@@ -641,7 +641,7 @@ name = "parso"
 version = "0.7.1"
 description = "A Python Parser"
 category = "main"
-optional = false
+optional = true
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 
 [package.extras]
@@ -660,7 +660,7 @@ name = "pexpect"
 version = "4.8.0"
 description = "Pexpect allows easy control of interactive console applications."
 category = "main"
-optional = false
+optional = true
 python-versions = "*"
 
 [package.dependencies]
@@ -671,7 +671,7 @@ name = "pickleshare"
 version = "0.7.5"
 description = "Tiny 'shelve'-like database with concurrency support"
 category = "main"
-optional = false
+optional = true
 python-versions = "*"
 
 [[package]]
@@ -735,7 +735,7 @@ name = "prompt-toolkit"
 version = "3.0.24"
 description = "Library for building powerful interactive command lines in Python"
 category = "main"
-optional = false
+optional = true
 python-versions = ">=3.6.2"
 
 [package.dependencies]
@@ -746,7 +746,7 @@ name = "ptyprocess"
 version = "0.7.0"
 description = "Run a subprocess in a pseudo terminal"
 category = "main"
-optional = false
+optional = true
 python-versions = "*"
 
 [[package]]
@@ -794,7 +794,7 @@ python-versions = ">=3.6"
 
 [[package]]
 name = "pytest"
-version = "6.2.5"
+version = "7.0.0"
 description = "pytest: simple powerful testing with Python"
 category = "dev"
 optional = false
@@ -809,10 +809,10 @@ iniconfig = "*"
 packaging = "*"
 pluggy = ">=0.12,<2.0"
 py = ">=1.8.2"
-toml = "*"
+tomli = ">=1.0.0"
 
 [package.extras]
-testing = ["argcomplete", "hypothesis (>=3.56)", "mock", "nose", "requests", "xmlschema"]
+testing = ["argcomplete", "hypothesis (>=3.56)", "mock", "nose", "pygments (>=2.7.2)", "requests", "xmlschema"]
 
 [[package]]
 name = "pytest-cov"
@@ -953,7 +953,7 @@ name = "traitlets"
 version = "4.3.3"
 description = "Traitlets Python config system"
 category = "main"
-optional = false
+optional = true
 python-versions = "*"
 
 [package.dependencies]
@@ -1013,7 +1013,7 @@ name = "wcwidth"
 version = "0.2.5"
 description = "Measures the displayed width of unicode strings in a terminal"
 category = "main"
-optional = false
+optional = true
 python-versions = "*"
 
 [[package]]
@@ -1053,7 +1053,7 @@ jupyter = ["ipywidgets"]
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.6.2"
-content-hash = "d642a2a33643ec67d8ec48fef8ac01b7226829d0dcc3a14b10c3140005cbd0f0"
+content-hash = "74159f2d5dbb53418204e0fd27ef544256648663c41d0a2841c11c34589c52f6"
 
 [metadata.files]
 appnope = [
@@ -1525,8 +1525,8 @@ pyrsistent = [
     {file = "pyrsistent-0.18.0.tar.gz", hash = "sha256:773c781216f8c2900b42a7b638d5b517bb134ae1acbebe4d1e8f1f41ea60eb4b"},
 ]
 pytest = [
-    {file = "pytest-6.2.5-py3-none-any.whl", hash = "sha256:7310f8d27bc79ced999e760ca304d69f6ba6c6649c0b60fb0e04a4a77cacc134"},
-    {file = "pytest-6.2.5.tar.gz", hash = "sha256:131b36680866a76e6781d13f101efb86cf674ebb9762eb70d3082b6f29889e89"},
+    {file = "pytest-7.0.0-py3-none-any.whl", hash = "sha256:42901e6bd4bd4a0e533358a86e848427a49005a3256f657c5c8f8dd35ef137a9"},
+    {file = "pytest-7.0.0.tar.gz", hash = "sha256:dad48ffda394e5ad9aa3b7d7ddf339ed502e5e365b1350e0af65f4a602344b11"},
 ]
 pytest-cov = [
     {file = "pytest-cov-3.0.0.tar.gz", hash = "sha256:e7f0f5b1617d2210a2cabc266dfe2f4c75a8d32fb89eafb7ad9d06f6d076d470"},
diff --git a/pyproject.toml b/pyproject.toml
index e8ea9bf9..c574de2f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -39,7 +39,7 @@ ipywidgets = { version = "^7.5.1", optional = true }
 jupyter = ["ipywidgets"]
 
 [tool.poetry.dev-dependencies]
-pytest = "^6.2.5"
+pytest = "^7.0.0"
 black = "^21.11b1"
 mypy = "^0.930"
 pytest-cov = "^3.0.0"