diff --git a/requirements.txt b/requirements.txt
index 474ee2447..c24f2e735 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,3 +4,4 @@ mkdocs-material == 9.*
 mkdocs-git-revision-date-plugin >= 0.3.2
 mkdocs-with-pdf >= 0.9.3
 weasyprint == 61.*
+pydyf == 0.10.0
\ No newline at end of file