diff --git a/test-requirements.txt b/test-requirements.txt
index 11b36c6..a045a82 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -8,7 +8,7 @@ alabaster==0.7.12
     # via sphinx
 async-generator==1.10
     # via -r test-requirements.in
-attrs==21.4.0
+attrs==25.4.0
     # via pytest
 babel==2.10.1
     # via sphinx