diff --git a/requirements/_tests.txt b/requirements/_tests.txt
index 0a8cb73eaab..32e3bd3a1ca 100644
--- a/requirements/_tests.txt
+++ b/requirements/_tests.txt
@@ -18,5 +18,5 @@ fire ==0.7.*
 
 cloudpickle >1.3, <=3.1.0
 scikit-learn ==1.2.*; python_version < "3.9"
-scikit-learn ==1.5.*; python_version > "3.8"  # we do not use `> =` because of oldest replcement
+scikit-learn ==1.6.*; python_version > "3.8"  # we do not use `> =` because of oldest replcement
 cachier ==3.1.2