diff --git a/requirements.txt b/requirements.txt
index f585a27..849cdf4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,14 +2,8 @@
 teachbooks # depends on jupyter-book
 jupyterbook-patches
 sphinx-image-inverter
-# numpy
-
-# docutils version for reference page formatting
-docutils==0.17.1
+download_link_replacer
 
 # now list the packages (and the respective url) you wish to download from the GitLab package registry
 --extra-index-url https://gitlab.tudelft.nl/api/v4/projects/11239/packages/pypi/simple
-sphinx-thebe ~= 0.9.9  #temporarily disable
-
-# lastly any packages you wish to download directly from a Git repository
-download_link_replacer @ git+https://gitlab.tudelft.nl/mude/sphinx-download-link-replacer
+sphinx-thebe ~= 0.9.9