diff --git a/requirements/_tests.txt b/requirements/_tests.txt
index d1458b5e87c..9ac1a6b9355 100644
--- a/requirements/_tests.txt
+++ b/requirements/_tests.txt
@@ -18,4 +18,4 @@ fire >=0.7.0, <0.8.0
 
 cloudpickle >1.3, <=3.1.1
 scikit-learn >1.5.0, <1.8.0
-cachier ==4.1.0
+cachier ==4.2.0