diff --git a/python/requirements/tune/requirements_tune.txt b/python/requirements/tune/requirements_tune.txt
index 4d09dea81b47..c713bbe412ed 100644
--- a/python/requirements/tune/requirements_tune.txt
+++ b/python/requirements/tune/requirements_tune.txt
@@ -4,7 +4,7 @@ ax-platform==0.2.1; python_version >= '3.7'
 bayesian-optimization==1.2.0
 ConfigSpace==0.4.18
 dask[complete]==2021.03.0; python_version < '3.7'
-dask[complete]==2021.06.1; python_version >= '3.7'
+dask[complete]==2021.8.1; python_version >= '3.7'
 dragonfly-opt==0.1.6
 flaml==0.5.2
 freezegun==1.1.0