diff --git a/poetry.lock b/poetry.lock
index 6dd9746..9735d9b 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1715,4 +1715,4 @@ doc = []
 [metadata]
 lock-version = "2.0"
 python-versions = "~3.8.10"
-content-hash = "aab82916ed332237e99a56ebafe52fdd28fe7bee8bd326566c9e148a556f5ca2"
+content-hash = "17762d29b4a51f1883beb7fe805ecd50cc33bf9341d9c24fe8f01f406347d102"
diff --git a/pyproject.toml b/pyproject.toml
index f4b12fc..15919d1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -21,16 +21,17 @@ requests = "2.28.2"
 typer = "0.7.0"
 
 [tool.poetry.group.dev.dependencies]
+py = "1.11.0"
 pytest = "7.2.1"
+pytest-cover = "3.0.0"
+pytest-html = "3.1.1"
 black = "23.1.0"
 isort = "5.12.0"
 flake8 = "6.0.0"
+pylint = "2.16.2"
 tox = "3.28.0"
 invoke = "1.7.3"
-pylint = "2.16.2"
 setuptools = "67.3.2"
-pytest-cover = "3.0.0"
-pytest-html = "3.1.1"
 sphinx = {version = "3.4.0", optional = true}
 sphinx-rtd-theme = {version = "0.5.0", optional = true}
 recommonmark = {version = "0.7.1", optional = true}
diff --git a/tox.ini b/tox.ini
index 8867b49..253190b 100644
--- a/tox.ini
+++ b/tox.ini
@@ -13,13 +13,14 @@ setenv =
 
 ; install dependencies.
 deps =
+    py == 1.11.0
+    pytest == 7.2.1
+    pytest-cov == 3.0.0
+    pytest-html == 3.1.1
     black == 23.1.0
     isort == 5.12.0
     flake8 == 6.0.0
     pylint == 2.16.2
-    pytest == 7.2.1
-    pytest-cov == 3.0.0
-    pytest-html == 3.1.1
 
 ; run command
 commands =