diff --git a/poetry.lock b/poetry.lock
index 3f5f9388..cc7b1845 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -620,23 +620,23 @@ testing = ["coverage", "pytest", "pytest-cov", "pytest-regressions"]
 
 [[package]]
 name = "marshmallow"
-version = "3.22.0"
+version = "3.26.2"
 description = "A lightweight library for converting complex datatypes to and from native Python datatypes."
 optional = false
-python-versions = ">=3.8"
+python-versions = ">=3.9"
 groups = ["main"]
 files = [
-    {file = "marshmallow-3.22.0-py3-none-any.whl", hash = "sha256:71a2dce49ef901c3f97ed296ae5051135fd3febd2bf43afe0ae9a82143a494d9"},
-    {file = "marshmallow-3.22.0.tar.gz", hash = "sha256:4972f529104a220bb8637d595aa4c9762afbe7f7a77d82dc58c1615d70c5823e"},
+    {file = "marshmallow-3.26.2-py3-none-any.whl", hash = "sha256:013fa8a3c4c276c24d26d84ce934dc964e2aa794345a0f8c7e5a7191482c8a73"},
+    {file = "marshmallow-3.26.2.tar.gz", hash = "sha256:bbe2adb5a03e6e3571b573f42527c6fe926e17467833660bebd11593ab8dfd57"},
 ]
 
 [package.dependencies]
 packaging = ">=17.0"
 
 [package.extras]
-dev = ["marshmallow[tests]", "pre-commit (>=3.5,<4.0)", "tox"]
-docs = ["alabaster (==1.0.0)", "autodocsumm (==0.2.13)", "sphinx (==8.0.2)", "sphinx-issues (==4.1.0)", "sphinx-version-warning (==1.1.2)"]
-tests = ["pytest", "pytz", "simplejson"]
+dev = ["marshmallow[tests]", "pre-commit (>=3.5,<5.0)", "tox"]
+docs = ["autodocsumm (==0.2.14)", "furo (==2024.8.6)", "sphinx (==8.1.3)", "sphinx-copybutton (==0.5.2)", "sphinx-issues (==5.0.0)", "sphinxext-opengraph (==0.9.1)"]
+tests = ["pytest", "simplejson"]
 
 [[package]]
 name = "mcp"
@@ -1903,4 +1903,4 @@ type = ["pytest-mypy"]
 [metadata]
 lock-version = "2.1"
 python-versions = ">=3.9"
-content-hash = "f0854d96f0878d9765ad704e15f5c7b53f2387a81df64a2d04e9221959720662"
+content-hash = "0c2ac3f9c3decb675e88c528086fae0fbf8bdfa97fad91a08358e4ae75923ebb"
diff --git a/pyproject.toml b/pyproject.toml
index 65fa2d65..37f75b0a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -36,7 +36,7 @@ version = "0.0.0" # DON'T TOUCH. Placeholder. Will be filled automatically on po
 click = ">=8.1.0,<8.2.0"
 colorama = ">=0.4.3,<0.5.0"
 pyyaml = ">=6.0,<7.0"
-marshmallow = ">=3.15.0,<3.23.0" # 3.23 dropped support for Python 3.8
+marshmallow = ">=3.15.0,<3.27.0" # 3.23 dropped support for Python 3.8
 gitpython = ">=3.1.30,<3.2.0"
 arrow = ">=1.0.0,<1.4.0"
 binaryornot = ">=0.4.4,<0.5.0"