diff --git a/requirements_mypy.txt b/requirements_mypy.txt
index 92d9e042..aebe0800 100644
--- a/requirements_mypy.txt
+++ b/requirements_mypy.txt
@@ -14,7 +14,7 @@ hatchling==1.27.0
     # via -r requirements_mypy.in
 hyperlink==21.0.0
     # via twisted
-idna==3.11
+idna==3.15
     # via hyperlink
 incremental==24.7.2
     # via twisted
diff --git a/requirements_tests.txt b/requirements_tests.txt
index 53b56f06..ae132e9f 100644
--- a/requirements_tests.txt
+++ b/requirements_tests.txt
@@ -54,7 +54,7 @@ hyperlink==21.0.0
     # via
     #   hatch
     #   twisted
-idna==3.11
+idna==3.15
     # via
     #   anyio
     #   httpx