diff --git a/requirements_dev.txt b/requirements_dev.txt
index c15789593..d8064af5c 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -4,7 +4,7 @@ wheel>=0.38.0
 
 # glotaran setup dependencies
 asteval==1.0.2
-attrs == 23.2.0
+attrs == 24.2.0
 click==8.1.7
 netCDF4==1.7.1.post2
 numba==0.60.0