diff --git a/poetry.lock b/poetry.lock
index 2fca8349e..8c06bca21 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -175,14 +175,14 @@ colorama = {version = "*", markers = "platform_system == \"Windows\""}
 
 [[package]]
 name = "coverage"
-version = "5.5"
+version = "6.1.1"
 description = "Code coverage measurement for Python"
 category = "dev"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, <4"
+python-versions = ">=3.6"
 
 [package.extras]
-toml = ["toml"]
+toml = ["tomli"]
 
 [[package]]
 name = "cryptography"
@@ -665,7 +665,7 @@ testing = ["pytest (>=4.6)", "pytest-checkdocs (>=1.2.3)", "pytest-flake8", "pyt
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.7.0"
-content-hash = "845991ba1600625029ca8cf881323fce8e7e1f8f669144f8fd596243c02290b8"
+content-hash = "8be0b1b27e9613370c33adb546fe505e2d5f05e50474dbc31677a047f018d37c"
 
 [metadata.files]
 alabaster = [
@@ -781,58 +781,55 @@ colorful = [
     {file = "colorful-0.5.4.tar.gz", hash = "sha256:86848ad4e2eda60cd2519d8698945d22f6f6551e23e95f3f14dfbb60997807ea"},
 ]
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     {file = "MarkupSafe-2.0.1.tar.gz", hash = "sha256:594c67807fb16238b30c44bdf74f36c02cdf22d1c8cda91ef8a0ed8dabf5620a"},
diff --git a/pyproject.toml b/pyproject.toml
index e36d1d077..ab155c310 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -37,7 +37,7 @@ defusedxml = ">=0.6,<0.8"
 
 
 [tool.poetry.dev-dependencies]
-coverage = "^5.5"
+coverage = "^6.1"
 pylint = "^2.8"
 sphinx = "^4.0.2"
 sphinx-autodoc-typehints = "^1.12.0"