diff --git a/poetry.lock b/poetry.lock
index ecfe9df..5dae71f 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -60,7 +60,6 @@ python-versions = ">=3.6"
 
 [package.dependencies]
 colorama = {version = "*", markers = "platform_system == \"Windows\""}
-importlib-metadata = {version = "*", markers = "python_version < \"3.8\""}
 
 [[package]]
 name = "colorama"
@@ -109,7 +108,6 @@ optional = false
 python-versions = ">=3.6"
 
 [package.dependencies]
-importlib-metadata = {version = "<4.3", markers = "python_version < \"3.8\""}
 mccabe = ">=0.6.0,<0.7.0"
 pycodestyle = ">=2.8.0,<2.9.0"
 pyflakes = ">=2.4.0,<2.5.0"
@@ -173,22 +171,6 @@ python-versions = ">=3.7"
 gitdb = ">=4.0.1,<5"
 typing-extensions = {version = ">=3.7.4.3", markers = "python_version < \"3.10\""}
 
-[[package]]
-name = "importlib-metadata"
-version = "4.2.0"
-description = "Read metadata from Python packages"
-category = "dev"
-optional = false
-python-versions = ">=3.6"
-
-[package.dependencies]
-typing-extensions = {version = ">=3.6.4", markers = "python_version < \"3.8\""}
-zipp = ">=0.5"
-
-[package.extras]
-docs = ["jaraco.packaging (>=8.2)", "rst.linker (>=1.9)", "sphinx"]
-testing = ["flufl.flake8", "importlib-resources (>=1.3)", "packaging", "pep517", "pyfakefs", "pytest (>=4.6)", "pytest-black (>=0.3.7)", "pytest-checkdocs (>=2.4)", "pytest-cov", "pytest-enabler (>=1.0.1)", "pytest-flake8", "pytest-mypy"]
-
 [[package]]
 name = "iniconfig"
 version = "1.1.1"
@@ -311,9 +293,6 @@ category = "dev"
 optional = false
 python-versions = ">=3.6"
 
-[package.dependencies]
-importlib-metadata = {version = ">=0.12", markers = "python_version < \"3.8\""}
-
 [package.extras]
 dev = ["pre-commit", "tox"]
 testing = ["pytest", "pytest-benchmark"]
@@ -397,7 +376,6 @@ python-versions = ">=3.6"
 atomicwrites = {version = ">=1.0", markers = "sys_platform == \"win32\""}
 attrs = ">=19.2.0"
 colorama = {version = "*", markers = "sys_platform == \"win32\""}
-importlib-metadata = {version = ">=0.12", markers = "python_version < \"3.8\""}
 iniconfig = "*"
 packaging = "*"
 pluggy = ">=0.12,<2.0"
@@ -423,7 +401,7 @@ dev = ["pre-commit", "pytest-asyncio", "tox"]
 
 [[package]]
 name = "pytest-sugar"
-version = "0.9.5"
+version = "0.9.6"
 description = "pytest-sugar is a plugin for pytest that changes the default look and feel of pytest (e.g. progressbar, show tests that fail instantly)."
 category = "dev"
 optional = false
@@ -554,22 +532,10 @@ category = "dev"
 optional = false
 python-versions = "*"
 
-[[package]]
-name = "zipp"
-version = "3.7.0"
-description = "Backport of pathlib-compatible object wrapper for zip files"
-category = "dev"
-optional = false
-python-versions = ">=3.7"
-
-[package.extras]
-docs = ["jaraco.packaging (>=8.2)", "rst.linker (>=1.9)", "sphinx"]
-testing = ["func-timeout", "jaraco.itertools", "pytest (>=6)", "pytest-black (>=0.3.7)", "pytest-checkdocs (>=2.4)", "pytest-cov", "pytest-enabler (>=1.0.1)", "pytest-flake8", "pytest-mypy"]
-
 [metadata]
 lock-version = "1.1"
-python-versions = ">=3.7 <3.9"
-content-hash = "c7012860ab231c3fd8528bfbb05c8f0a65ade609365e32c8b9d4c0030e4c6fd2"
+python-versions = "~3.8"
+content-hash = "8962fb7a1093875569c0bdad24308aeb28f34cf346ae5b7744e28a3286e5a03a"
 
 [metadata.files]
 appdirs = [
@@ -627,10 +593,6 @@ gitpython = [
     {file = "GitPython-3.1.24-py3-none-any.whl", hash = "sha256:dc0a7f2f697657acc8d7f89033e8b1ea94dd90356b2983bca89dc8d2ab3cc647"},
     {file = "GitPython-3.1.24.tar.gz", hash = "sha256:df83fdf5e684fef7c6ee2c02fc68a5ceb7e7e759d08b694088d0cacb4eba59e5"},
 ]
-importlib-metadata = [
-    {file = "importlib_metadata-4.2.0-py3-none-any.whl", hash = "sha256:057e92c15bc8d9e8109738a48db0ccb31b4d9d5cfbee5a8670879a30be66304b"},
-    {file = "importlib_metadata-4.2.0.tar.gz", hash = "sha256:b7e52a1f8dec14a75ea73e0891f3060099ca1d8e6a462a4dff11c3e119ea1b31"},
-]
 iniconfig = [
     {file = "iniconfig-1.1.1-py2.py3-none-any.whl", hash = "sha256:011e24c64b7f47f6ebd835bb12a743f2fbe9a26d4cecaa7f53bc4f35ee9da8b3"},
     {file = "iniconfig-1.1.1.tar.gz", hash = "sha256:bc3af051d7d14b2ee5ef9969666def0cd1a000e121eaea580d4a313df4b37f32"},
@@ -857,8 +819,8 @@ pytest-mock = [
     {file = "pytest_mock-3.6.1-py3-none-any.whl", hash = "sha256:30c2f2cc9759e76eee674b81ea28c9f0b94f8f0445a1b87762cadf774f0df7e3"},
 ]
 pytest-sugar = [
-    {file = "pytest-sugar-0.9.5.tar.gz", hash = "sha256:eea78b6f15b635277d3d90280cd386d8feea1cab0f9be75947a626e8b02b477d"},
-    {file = "pytest_sugar-0.9.5-py2.py3-none-any.whl", hash = "sha256:3da42de32ce4e1e95b448d61c92804433f5d4058c0a765096991c2e93d5a289f"},
+    {file = "pytest-sugar-0.9.6.tar.gz", hash = "sha256:c4793495f3c32e114f0f5416290946c316eb96ad5a3684dcdadda9267e59b2b8"},
+    {file = "pytest_sugar-0.9.6-py2.py3-none-any.whl", hash = "sha256:30e5225ed2b3cc988a8a672f8bda0fc37bcd92d62e9273937f061112b3f2186d"},
 ]
 python-dateutil = [
     {file = "python-dateutil-2.8.2.tar.gz", hash = "sha256:0123cacc1627ae19ddf3c27a5de5bd67ee4586fbdd6440d9748f8abb483d3e86"},
@@ -1011,7 +973,3 @@ unidiff = [
     {file = "unidiff-0.7.0-py2.py3-none-any.whl", hash = "sha256:ae4a9dacb2fba7297dbd85c4d629728ca4b3a6c2606a53a419b53b0388857c89"},
     {file = "unidiff-0.7.0.tar.gz", hash = "sha256:91bb13b4969514a400679d9ae5e29a6ffad85346087677f8b5e2e036af817447"},
 ]
-zipp = [
-    {file = "zipp-3.7.0-py3-none-any.whl", hash = "sha256:b47250dd24f92b7dd6a0a8fc5244da14608f3ca90a5efcd37a3b1642fac9a375"},
-    {file = "zipp-3.7.0.tar.gz", hash = "sha256:9f50f446828eb9d45b267433fd3e9da8d801f614129124863f9c51ebceafb87d"},
-]
diff --git a/pyproject.toml b/pyproject.toml
index 959b943..4725762 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -13,7 +13,7 @@ matplotlib = "^3.5.1"
 pysen = { version = "^0.10.2", extras = ["lint"] }
 pytest = "^6.2.5"
 pytest-mock = "^3.6.1"
-pytest-sugar = "^0.9.5"
+pytest-sugar = "^0.9.6"
 
 [build-system]
 requires = ["poetry-core>=1.0.0"]