diff --git a/images/jupyternb-cpu/requirements.txt b/images/jupyternb-cpu/requirements.txt
index ed92363..b488f04 100644
--- a/images/jupyternb-cpu/requirements.txt
+++ b/images/jupyternb-cpu/requirements.txt
@@ -2,7 +2,7 @@ notebook==6.0.3
 jupyterhub==1.1.0
 jupyterlab==1.2.7
 jupyter_kernel_gateway==2.4.0
-dask==2.10.0
+dask==2021.10.0
 distributed==2.10.0
 tornado==6.0.3
 cx-Oracle==7.3.0