diff --git a/_pkgdown.yml b/_pkgdown.yml
index 0b27246e..afe4f1bc 100644
--- a/_pkgdown.yml
+++ b/_pkgdown.yml
@@ -1,5 +1,6 @@
 url: http://philchalmers.github.io/SimDesign/
 template:
+  bootstrap: 5
   light-switch: true
   theme: gruvbox-light
   theme-dark: gruvbox-dark