diff --git a/python-requirements/notebook-requirements.txt b/python-requirements/notebook-requirements.txt
index 5df524d..7e5015e 100644
--- a/python-requirements/notebook-requirements.txt
+++ b/python-requirements/notebook-requirements.txt
@@ -29,7 +29,7 @@ holoviews==1.8.4
 #datashader - External dependencies
 colorcet==0.9.1
 xarray==0.9.6
-cloudpickle==0.4.0
+cloudpickle==0.4.1
 # ipyvolume==0.4.0  #  Disabling for now as requires Pillow which requires libjpeg
 pythreejs==0.4.0
 paramnb==2.0.2