diff --git a/python/requirements/ml/requirements_tune.txt b/python/requirements/ml/requirements_tune.txt
index c60fa72e1d24..b3455e097fa7 100644
--- a/python/requirements/ml/requirements_tune.txt
+++ b/python/requirements/ml/requirements_tune.txt
@@ -13,7 +13,7 @@ gpy==1.10.0
 autorom[accept-rom-license]
 gym[atari]>=0.21.0; python_version >= '3.7'
 gym[atari]==0.19.0; python_version < '3.7'
-h5py==3.1.0
+h5py==3.6.0
 hpbandster==0.7.4
 pymoo<0.5.0  # this is a HEBO dependency, remove after https://github.com/huawei-noah/noah-research/issues/41 is fixed
 HEBO==0.1.0