diff --git a/pyproject.toml b/pyproject.toml
index 2283e44..0e7c6ca 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -101,7 +101,7 @@ all = [
     "colorama==0.4.6",
     "typing_extensions==4.15.0",
     "typing-inspection==0.4.2",
-    "attrs==25.4.0",
+    "attrs==26.1.0",
     "annotated-types==0.7.0",
     "anyio==4.12.1",
     "certifi==2026.2.25",