diff --git a/pyproject.toml b/pyproject.toml
index 3a70f0a..e0c93a5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -100,7 +100,7 @@ dynamic = [
   "version",
 ]
 dependencies = [
-  "attrs<24",
+  "attrs<25",
   "backports-strenum<1.3; python_version<'3.11'",
   "simplejson<4",
   "toolz<0.13",