diff --git a/material/3_wed/vis/handout.qmd b/material/3_wed/vis/handout.qmd
index b12cb7f..a515d34 100644
--- a/material/3_wed/vis/handout.qmd
+++ b/material/3_wed/vis/handout.qmd
@@ -243,4 +243,3 @@ h
 
 [Click here for the next task](tasks.qmd#3)
 
-df = CSV.read(download("https://raw.githubusercontent.com/rfordatascience/tidytuesday/master/data/2023/2023-04-11/egg-production.csv"),DataFrame)
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diff --git a/material/4_thu/parallel/slides.qmd b/material/4_thu/parallel/slides.qmd
index d783d4c..4a68ec8 100644
--- a/material/4_thu/parallel/slides.qmd
+++ b/material/4_thu/parallel/slides.qmd
@@ -4,4 +4,5 @@ The slides are available [in pptx format here](Julia_Parallel_Distributed_2023_S
 
 ## Exercise
 
-The exercise is available [as a jupyter-notebook here](Julia_Parallel_Distributed_2023_Stuttgart.ipynb). 
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+The exercise is rendered [as html here](Julia_Parallel_Distributed_2023_Stuttgart.ipynb) but can also be downloaded {{< downloadthis Julia_Parallel_Distributed_2023_Stuttgart.ipynb label="Download as ipynb" >}}
+ 
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