diff --git a/requirements-dev.txt b/requirements-dev.txt
index 86d5383..c54f391 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -12,7 +12,7 @@ py==1.8.0
 more-itertools==7.0.0
 atomicwrites==1.3.0
 pluggy==0.11.0
-attrs==19.1.0
+attrs==25.4.0
 importlib-metadata==0.10
 zipp==0.5.0
 requests==2.21.0