diff --git a/book/_config.yml b/book/_config.yml
index 3c7269e..c43c908 100644
--- a/book/_config.yml
+++ b/book/_config.yml
@@ -27,7 +27,7 @@ sphinx:
     - https://cdnjs.cloudflare.com/ajax/libs/require.js/2.3.4/require.min.js
     thebe_config:
       use_thebe_lite: true
-      exclude_patterns: ["**/_*.yml", "**/*.md", "**/*.ipynb"]
+      exclude_patterns: ["**/_*.yml", "**/*.md", "**/*.ipynb","**/*.gif","**/*.txt","**/*.json",]
     html_theme_options:
       repository_url: "https://gitlab.tudelft.nl/interactivetextbooks-citg/jupyter-book-manual"
       use_repository_button: true