diff --git a/integration_test/synapse/synapse-develop/poetry.lock b/integration_test/synapse/synapse-develop/poetry.lock
index bb17daee..98bc154a 100644
--- a/integration_test/synapse/synapse-develop/poetry.lock
+++ b/integration_test/synapse/synapse-develop/poetry.lock
@@ -711,18 +711,18 @@ test = ["coverage[toml]", "pretend", "pytest", "pytest-cov"]
 
 [[package]]
 name = "idna"
-version = "3.10"
+version = "3.15"
 description = "Internationalized Domain Names in Applications (IDNA)"
 optional = false
-python-versions = ">=3.6"
+python-versions = ">=3.8"
 groups = ["main", "dev"]
 files = [
-    {file = "idna-3.10-py3-none-any.whl", hash = "sha256:946d195a0d259cbba61165e88e65941f16e9b36ea6ddb97f00452bae8b1287d3"},
-    {file = "idna-3.10.tar.gz", hash = "sha256:12f65c9b470abda6dc35cf8e63cc574b1c52b11df2c86030af0ac09b01b13ea9"},
+    {file = "idna-3.15-py3-none-any.whl", hash = "sha256:048adeaf8c2d788c40fee287673ccaa74c24ffd8dcf09ffa555a2fbb59f10ac8"},
+    {file = "idna-3.15.tar.gz", hash = "sha256:ca962446ea538f7092a95e057da437618e886f4d349216d2b1e294abfdb65fdc"},
 ]
 
 [package.extras]
-all = ["flake8 (>=7.1.1)", "mypy (>=1.11.2)", "pytest (>=8.3.2)", "ruff (>=0.6.2)"]
+all = ["mypy (>=1.11.2)", "pytest (>=8.3.2)", "ruff (>=0.6.2)"]
 
 [[package]]
 name = "ijson"
@@ -3436,4 +3436,4 @@ url-preview = ["lxml"]
 [metadata]
 lock-version = "2.1"
 python-versions = "^3.9.0"
-content-hash = "6871453202e2ffc3c9ee5761481e0ef4ad99f08d9b8f24c6d6a64c2683683845"
+content-hash = "a233881735543fd3f6e0a4056fee7ada0dc0f246f4388ed98bdf64fd29d6331e"
diff --git a/integration_test/synapse/synapse-develop/pyproject.toml b/integration_test/synapse/synapse-develop/pyproject.toml
index 79b2cf96..3d2d1be5 100644
--- a/integration_test/synapse/synapse-develop/pyproject.toml
+++ b/integration_test/synapse/synapse-develop/pyproject.toml
@@ -343,7 +343,7 @@ types-setuptools = ">=57.4.0"
 # parameterized<0.7.4 can create classes with names that would normally be invalid
 # identifiers. trial really does not like this when running with multiple workers.
 parameterized = ">=0.7.4"
-idna = ">=2.5"
+idna = ">=3.15"
 
 # The following are used by the release script
 click = ">=8.1.3"