diff --git a/pyproject.toml b/pyproject.toml
index 8b78f03..db1e4b5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -106,7 +106,7 @@ dynamic = [
   "version",
 ]
 dependencies = [
-  "attrs<26",
+  "attrs<27",
   "backports-strenum<1.3; python_version<'3.11'",
   "cattrs<26",
   "importlib-resources<6.5; python_version<'3.10'",