diff --git a/requirements.txt b/requirements.txt
index 21f876b4370ca81d6c924c4c21206bb30467af94..ea9be48d58e16f32015f0295606fd4a260a83fad 100755
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,2 @@
 mkdocs
-mkdocs-material
\ No newline at end of file
+mkdocs-material<5.0