diff --git a/experimenter/tests/poetry.lock b/experimenter/tests/poetry.lock
index 51d714cbc0..4715e1c6e4 100644
--- a/experimenter/tests/poetry.lock
+++ b/experimenter/tests/poetry.lock
@@ -526,13 +526,13 @@ files = [
 
 [[package]]
 name = "marshmallow"
-version = "3.23.0"
+version = "3.24.0"
 description = "A lightweight library for converting complex datatypes to and from native Python datatypes."
 optional = false
 python-versions = ">=3.9"
 files = [
-    {file = "marshmallow-3.23.0-py3-none-any.whl", hash = "sha256:82f20a2397834fe6d9611b241f2f7e7b680ed89c49f84728a1ad937be6b4bdf4"},
-    {file = "marshmallow-3.23.0.tar.gz", hash = "sha256:98d8827a9f10c03d44ead298d2e99c6aea8197df18ccfad360dae7f89a50da2e"},
+    {file = "marshmallow-3.24.0-py3-none-any.whl", hash = "sha256:459922b7a1fd3d29d5082ddcadfcea0efd98985030e71d3ef0dd8f44f406e41d"},
+    {file = "marshmallow-3.24.0.tar.gz", hash = "sha256:378572f727e52123d00de1bdd9b7ea7bed18bbfedc7f9bfbcddaf78925a8d602"},
 ]
 
 [package.dependencies]
@@ -540,7 +540,7 @@ packaging = ">=17.0"
 
 [package.extras]
 dev = ["marshmallow[tests]", "pre-commit (>=3.5,<5.0)", "tox"]
-docs = ["alabaster (==1.0.0)", "autodocsumm (==0.2.13)", "sphinx (==8.1.3)", "sphinx-issues (==5.0.0)", "sphinx-version-warning (==1.1.2)"]
+docs = ["alabaster (==1.0.0)", "autodocsumm (==0.2.14)", "sphinx (==8.1.3)", "sphinx-issues (==5.0.0)"]
 tests = ["pytest", "simplejson"]
 
 [[package]]
@@ -1733,4 +1733,4 @@ test = ["zope.security", "zope.testrunner"]
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.10"
-content-hash = "7ee764c1277123eb80d9bcf258a93ae41be8b35e6d192446c2426e792234a0ba"
+content-hash = "ad762912648bbf7d7c87051ce29937f327a2c40b27bf2041138bc0cafef7f6a5"
diff --git a/experimenter/tests/pyproject.toml b/experimenter/tests/pyproject.toml
index 3521cdfe9f..3121dc3177 100644
--- a/experimenter/tests/pyproject.toml
+++ b/experimenter/tests/pyproject.toml
@@ -45,7 +45,7 @@ pytest-forked = "^1.6.0"
 apipkg = "^3.0.2"
 python-dateutil = "^2.9.0.post0"
 pydantic = "^1.10.15"
-marshmallow = "^3.23.0"
+marshmallow = "^3.24.0"
 marshmallow-enum = "^1.5.1"
 mypy-extensions = "^1.0.0"
 charset-normalizer = "^3.4.0"