diff --git a/scripts/klippy-requirements.txt b/scripts/klippy-requirements.txt
index 77c2b8ef..dd46dce0 100644
--- a/scripts/klippy-requirements.txt
+++ b/scripts/klippy-requirements.txt
@@ -7,3 +7,4 @@ pyserial==3.4
 greenlet==1.1.2
 Jinja2==2.11.3
 python-can==3.3.4
+markupsafe==1.1.1