diff --git a/scripts/klippy-requirements.txt b/scripts/klippy-requirements.txt
index 52a3092..07d11e4 100644
--- a/scripts/klippy-requirements.txt
+++ b/scripts/klippy-requirements.txt
@@ -6,5 +6,5 @@ cffi==1.14.6
 pyserial==3.4
 greenlet==2.0.2
 Jinja2==2.11.3
-python-can==3.3.4
+python-can==4.3
 markupsafe==1.1.1