diff --git a/tips/06-style-props-value-px.md b/tips/06-style-props-value-px.md
index 3f308cbc..ae6fd4f1 100644
--- a/tips/06-style-props-value-px.md
+++ b/tips/06-style-props-value-px.md
@@ -20,6 +20,7 @@ Sometimes you _do_ want to keep the CSS properties unitless. Here's a list of pr
 
 - `boxFlex`
 - `boxFlexGroup`
+- `boxOrdinalGroup`
 - `columnCount`
 - `fillOpacity`
 - `flex`
@@ -27,6 +28,7 @@ Sometimes you _do_ want to keep the CSS properties unitless. Here's a list of pr
 - `flexPositive`
 - `flexShrink`
 - `flexNegative`
+- `flexOrder`
 - `fontWeight`
 - `lineClamp`
 - `lineHeight`