diff --git a/g-cloud/requirements.txt b/g-cloud/requirements.txt
index 54cb0b2..2cbb627 100644
--- a/g-cloud/requirements.txt
+++ b/g-cloud/requirements.txt
@@ -46,7 +46,7 @@ cryptography==2.8
 cycler==0.10.0
 Cython==0.29.15
 cytoolz==0.10.1
-dask==2.11.0
+dask==2021.10.0
 decorator==4.4.1
 defusedxml==0.6.0
 diff-match-patch==20181111