diff --git a/poetry.lock b/poetry.lock
index 1f1a344..42e9f8d 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -968,21 +968,21 @@ testing = ["argcomplete", "attrs (>=19.2.0)", "hypothesis (>=3.56)", "mock", "no
 
 [[package]]
 name = "pytest-asyncio"
-version = "0.18.3"
+version = "0.21.1"
 description = "Pytest support for asyncio"
 optional = false
 python-versions = ">=3.7"
 files = [
-    {file = "pytest-asyncio-0.18.3.tar.gz", hash = "sha256:7659bdb0a9eb9c6e3ef992eef11a2b3e69697800ad02fb06374a210d85b29f91"},
-    {file = "pytest_asyncio-0.18.3-1-py3-none-any.whl", hash = "sha256:16cf40bdf2b4fb7fc8e4b82bd05ce3fbcd454cbf7b92afc445fe299dabb88213"},
-    {file = "pytest_asyncio-0.18.3-py3-none-any.whl", hash = "sha256:8fafa6c52161addfd41ee7ab35f11836c5a16ec208f93ee388f752bea3493a84"},
+    {file = "pytest-asyncio-0.21.1.tar.gz", hash = "sha256:40a7eae6dded22c7b604986855ea48400ab15b069ae38116e8c01238e9eeb64d"},
+    {file = "pytest_asyncio-0.21.1-py3-none-any.whl", hash = "sha256:8666c1c8ac02631d7c51ba282e0c69a8a452b211ffedf2599099845da5c5c37b"},
 ]
 
 [package.dependencies]
-pytest = ">=6.1.0"
+pytest = ">=7.0.0"
 
 [package.extras]
-testing = ["coverage (==6.2)", "flaky (>=3.5.0)", "hypothesis (>=5.7.1)", "mypy (==0.931)", "pytest-trio (>=0.7.0)"]
+docs = ["sphinx (>=5.3)", "sphinx-rtd-theme (>=1.0)"]
+testing = ["coverage (>=6.2)", "flaky (>=3.5.0)", "hypothesis (>=5.7.1)", "mypy (>=0.931)", "pytest-trio (>=0.7.0)"]
 
 [[package]]
 name = "pytest-cov"
@@ -1627,4 +1627,4 @@ h11 = ">=0.9.0,<1"
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.10"
-content-hash = "900fafedd61220e07f8bad3f3c0d2b62398c85815d93ebc33a0107a909d8ec03"
+content-hash = "0f6a463c7de57ce43aa23ba3d6b98f5f58be6b74e9d3f20b21cbb62c9455ab4e"
diff --git a/pyproject.toml b/pyproject.toml
index 2574151..d8dffed 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -16,7 +16,7 @@ shed = ">=0.9.5,<2023.7.0"
 pylint = "^2.13.8"
 mypy = ">=0.950,<1.5"
 pytest = "^7.1.2"
-pytest-asyncio = "^0.18.3"
+pytest-asyncio = ">=0.18.3,<0.22.0"
 pytest-cov = "^4.1.0"
 docformatter = "^1.4"
 pytest-pylint = "^0.18.0"