diff --git a/requirements.txt b/requirements.txt
index 4ae7fa0a..60bc0b9b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ ufo2ft==2.33.4
 fontMath==0.9.3
 booleanOperations==0.9.0
 ufoLib2==0.16.0
-attrs==23.1.0
+attrs==23.2.0
 cffsubr==0.2.9.post1
 compreffor==0.5.5
 ttfautohint-py==0.5.1