diff --git a/poetry.lock b/poetry.lock
index 2518ce0..56e3ed7 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1675,20 +1675,23 @@ files = [
 
 [[package]]
 name = "testfixtures"
-version = "10.0.0"
+version = "11.0.0"
 description = "A collection of helpers and mock objects for unit tests and doc tests."
 optional = false
 python-versions = ">=3.11"
 groups = ["test"]
 files = [
-    {file = "testfixtures-10.0.0-py3-none-any.whl", hash = "sha256:c54ed5c4cd93ad271a6add94a575a5843964ea3aaf590f4c3cb4df16a261b15f"},
-    {file = "testfixtures-10.0.0.tar.gz", hash = "sha256:2b9829bf7f42f0ca8600250762e6725575da59af18d9a7f82aae2c97b14f0f66"},
+    {file = "testfixtures-11.0.0-py3-none-any.whl", hash = "sha256:371385596e87388469f2635decba00619cc416cd034671ecde8a059f6625634e"},
+    {file = "testfixtures-11.0.0.tar.gz", hash = "sha256:06dfeb3792e06c4ea7217e14114391f6c7735c36e0a57e6f4641c6ae5d790ee7"},
 ]
 
 [package.extras]
-build = ["setuptools-git", "twine", "wheel"]
-docs = ["django", "furo", "sphinx", "sybil (>=6)", "twisted"]
-test = ["django", "django-stubs", "mypy", "mypy-zope", "pytest (>=7.1)", "pytest-cov", "pytest-django", "sybil (>=6)", "twisted", "types-mock"]
+django = ["django (>=4) ; python_version < \"3.13\"", "django (>=5.1.3) ; python_version >= \"3.13\""]
+mock-backport = ["mock (>=4.0.3)"]
+sybil = ["sybil (>=6.0.3)"]
+toml = ["tomlkit (>=0.10.0)"]
+twisted = ["twisted (>=22.1)"]
+yaml = ["pyyaml (>=6.0.3)"]
 
 [[package]]
 name = "textual"
@@ -1836,4 +1839,4 @@ test = ["pytest", "pytest-cov"]
 [metadata]
 lock-version = "2.1"
 python-versions = "^3.12"
-content-hash = "3387bc22d97ac7133513cc76c3e1a852080204b4ba582f922f45c657e554438c"
+content-hash = "077b5054434bf3c0e5be51ac98a2eb8e32709e9d74c57dd74a29d01cb1364f91"
diff --git a/pyproject.toml b/pyproject.toml
index 81e4192..47caeb5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -34,7 +34,7 @@ cloudsnake = 'cloudsnake.__main__:main'
 [tool.poetry.group.test.dependencies]
 pytest-randomly = "^4.0.1"
 pytest = "^9.0.1"
-testfixtures = "^10.0.0"
+testfixtures = ">=10,<12"
 moto = "^5.0.9"
 pytest-cov = "^7.0.0"