diff --git a/convert_source_description/README.md b/convert_source_description/README.md
index 01ef9a8..e5fb7b9 100644
--- a/convert_source_description/README.md
+++ b/convert_source_description/README.md
@@ -20,6 +20,7 @@ Now you're good to run the conversion script.
 
 ### Conversion
 
+* In the terminal, type `pip install -r requirements.txt` to install the latest library versions.
 * In the terminal, type `python convert_source_description.py <SOURCEDESC_DIRECTORY> <SOURCEDESC_FILENAME>`.
 * Replace `<SOURCEDESC_DIRECTORY>` with the path to your local directory that contains the source-description (with `/` at the end).
 * Replace `<SOURCEDESC_FILENAME>` with the file name without the file type ending `.docx`.