diff --git a/pyproject.toml b/pyproject.toml
index 1340db41..9209a78d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -46,7 +46,7 @@ dependencies = [
   "h11==0.16.0",
   "httpcore==1.0.9",
   "httpx==0.28.1",
-  "idna==3.11",
+  "idna==3.15",
   "iniconfig==2.3.0",
   "itsdangerous>=2.2.0",
   "jinja2==3.1.6",
diff --git a/requirements.txt b/requirements.txt
index 8b22ed9a..01e188cf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -976,9 +976,9 @@ identify==2.6.18 \
     --hash=sha256:873ac56a5e3fd63e7438a7ecbc4d91aca692eb3fefa4534db2b7913f3fc352fd \
     --hash=sha256:8db9d3c8ea9079db92cafb0ebf97abdc09d52e97f4dcf773a2e694048b7cd737
     # via pre-commit
-idna==3.11 \
-    --hash=sha256:771a87f49d9defaf64091e6e6fe9c18d4833f140bd19464795bc32d966ca37ea \
-    --hash=sha256:795dafcc9c04ed0c1fb032c2aa73654d8e8c5023a7df64a53f39190ada629902
+idna==3.15 \
+    --hash=sha256:048adeaf8c2d788c40fee287673ccaa74c24ffd8dcf09ffa555a2fbb59f10ac8 \
+    --hash=sha256:ca962446ea538f7092a95e057da437618e886f4d349216d2b1e294abfdb65fdc
     # via
     #   anyio
     #   email-validator
diff --git a/uv.lock b/uv.lock
index 7e061fba..3cfa8ce4 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1110,11 +1110,11 @@ wheels = [
 
 [[package]]
 name = "idna"
-version = "3.11"
+version = "3.15"
 source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/6f/6d/0703ccc57f3a7233505399edb88de3cbd678da106337b9fcde432b65ed60/idna-3.11.tar.gz", hash = "sha256:795dafcc9c04ed0c1fb032c2aa73654d8e8c5023a7df64a53f39190ada629902", size = 194582, upload-time = "2025-10-12T14:55:20.501Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/82/77/7b3966d0b9d1d31a36ddf1746926a11dface89a83409bf1483f0237aa758/idna-3.15.tar.gz", hash = "sha256:ca962446ea538f7092a95e057da437618e886f4d349216d2b1e294abfdb65fdc", size = 199245, upload-time = "2026-05-12T22:45:57.011Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/0e/61/66938bbb5fc52dbdf84594873d5b51fb1f7c7794e9c0f5bd885f30bc507b/idna-3.11-py3-none-any.whl", hash = "sha256:771a87f49d9defaf64091e6e6fe9c18d4833f140bd19464795bc32d966ca37ea", size = 71008, upload-time = "2025-10-12T14:55:18.883Z" },
+    { url = "https://files.pythonhosted.org/packages/d2/23/408243171aa9aaba178d3e2559159c24c1171a641aa83b67bdd3394ead8e/idna-3.15-py3-none-any.whl", hash = "sha256:048adeaf8c2d788c40fee287673ccaa74c24ffd8dcf09ffa555a2fbb59f10ac8", size = 72340, upload-time = "2026-05-12T22:45:55.733Z" },
 ]
 
 [[package]]
@@ -1598,7 +1598,7 @@ requires-dist = [
     { name = "h11", specifier = "==0.16.0" },
     { name = "httpcore", specifier = "==1.0.9" },
     { name = "httpx", specifier = "==0.28.1" },
-    { name = "idna", specifier = "==3.11" },
+    { name = "idna", specifier = "==3.15" },
     { name = "iniconfig", specifier = "==2.3.0" },
     { name = "itsdangerous", specifier = ">=2.2.0" },
     { name = "jinja2", specifier = "==3.1.6" },