diff --git a/docs/requirements.txt b/docs/requirements.txt
index 94264a0..476e903 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,3 +1,4 @@
 sphinx==8.0.2
 myst_parser==4.0.0
-sphinx-book-theme==1.1.3
\ No newline at end of file
+sphinx-book-theme==1.1.3
+sphinxcontrib-mermaid==0.9.2
\ No newline at end of file