diff --git a/poetry.lock b/poetry.lock
index 40f1cee1..e489d912 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -821,14 +821,14 @@ smmap = ">=3.0.1,<6"
 
 [[package]]
 name = "gitpython"
-version = "3.1.44"
+version = "3.1.46"
 description = "GitPython is a Python library used to interact with Git repositories"
 optional = false
 python-versions = ">=3.7"
 groups = ["main"]
 files = [
-    {file = "GitPython-3.1.44-py3-none-any.whl", hash = "sha256:9e0e10cda9bed1ee64bc9a6de50e7e38a9c9943241cd7f585f6df3ed28011110"},
-    {file = "gitpython-3.1.44.tar.gz", hash = "sha256:c87e30b26253bf5418b01b0660f818967f3c503193838337fe5e573331249269"},
+    {file = "gitpython-3.1.46-py3-none-any.whl", hash = "sha256:79812ed143d9d25b6d176a10bb511de0f9c67b1fa641d82097b0ab90398a2058"},
+    {file = "gitpython-3.1.46.tar.gz", hash = "sha256:400124c7d0ef4ea03f7310ac2fbf7151e09ff97f2a3288d64a440c584a29c37f"},
 ]
 
 [package.dependencies]
@@ -836,7 +836,7 @@ gitdb = ">=4.0.1,<5"
 
 [package.extras]
 doc = ["sphinx (>=7.1.2,<7.2)", "sphinx-autodoc-typehints", "sphinx_rtd_theme"]
-test = ["coverage[toml]", "ddt (>=1.1.1,!=1.4.3)", "mock ; python_version < \"3.8\"", "mypy", "pre-commit", "pytest (>=7.3.1)", "pytest-cov", "pytest-instafail", "pytest-mock", "pytest-sugar", "typing-extensions ; python_version < \"3.11\""]
+test = ["coverage[toml]", "ddt (>=1.1.1,!=1.4.3)", "mock ; python_version < \"3.8\"", "mypy (==1.18.2) ; python_version >= \"3.9\"", "pre-commit", "pytest (>=7.3.1)", "pytest-cov", "pytest-instafail", "pytest-mock", "pytest-sugar", "typing-extensions ; python_version < \"3.11\""]
 
 [[package]]
 name = "greenlet"
@@ -2197,4 +2197,4 @@ testing = ["coverage[toml]", "zope.event", "zope.testing"]
 [metadata]
 lock-version = "2.1"
 python-versions = "^3.10"
-content-hash = "acfb701ea9563fcf6a00f283fcb511e9284ccbefc2a0ae7e4ad0f19d1d604a2b"
+content-hash = "f4bec98adecf78b335f58ba7f0e6ba594094cb46fe9085b117e4fe9fe99642ee"
diff --git a/pyproject.toml b/pyproject.toml
index ce8fed5b..ba130fcc 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -28,7 +28,7 @@ pyyaml = "^6.0"
 docopt = "^0.6.2"
 jsonpath-rw = "^1.4.0"
 semver = "^2.9.0"
-gitpython = "^3.0.5"
+gitpython = "^3.1.46"
 pytest-ordering = "^0.6"
 pytest-nhsd-apim = "^3.3.9"
 authlib = "^1.6.7"