Markdown card deleting .0

I have a markdown card that shows the value of a template:

{{ states('sensor.lounge_combined_temp') | round (1) }}

In the template editor, when the value is 5.0, the template editor shows 5.0 but the markdown card only shows 5 with no decimal point.

Any ideas as to how I can get the .0 as its screwing up the “kerning” of my “vertical-stack-in-card”