diff --git a/intro.qmd b/intro.qmd
index 149f36d..aa0a542 100644
--- a/intro.qmd
+++ b/intro.qmd
@@ -1,4 +1,4 @@
-# Introduction {#sec-intro}
+# Introduction {#sec-intro .unnumbered}
 
 ```{r}
 #| echo: false