diff --git a/requirements.txt b/requirements.txt
index 01fbc42c..cecef56f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ cftime==1.0.4.2
 chardet==3.0.4
 coverage==5.0.3
 Cython==0.29.14
-dask==2.7.0
+dask==2021.10.0
 decorator==4.4.1
 docopt==0.6.2
 docutils==0.15.2
diff --git a/requirements27.txt b/requirements27.txt
index 0e675248..99c1146a 100644
--- a/requirements27.txt
+++ b/requirements27.txt
@@ -8,7 +8,7 @@ cftime==1.0.3.4
 configparser==4.0.2
 contextlib2==0.6.0.post1
 Cython==0.29.13
-dask==1.2.2
+dask==2021.10.0
 decorator==4.4.1
 docopt==0.6.2
 entrypoints==0.3