diff --git a/docs/requirements.in b/docs/requirements.in
index f5df2a6..6fff9d0 100644
--- a/docs/requirements.in
+++ b/docs/requirements.in
@@ -10,5 +10,5 @@ autodoc==0.5.0
 
 tornado==6.5.5
 jinja2==3.1.6
-idna==3.11
+idna==3.15
 starlette==0.52.1
diff --git a/docs/requirements.txt b/docs/requirements.txt
index 227bb71..9e9a3ff 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -36,7 +36,7 @@ furo==2025.12.19
     # via -r requirements.in
 h11==0.16.0
     # via uvicorn
-idna==3.11
+idna==3.15
     # via
     #   -r requirements.in
     #   anyio