diff --git a/scripts/dev/setup b/scripts/dev/setup
index f21f3b28..7f2a4e9e 100755
--- a/scripts/dev/setup
+++ b/scripts/dev/setup
@@ -19,3 +19,5 @@ mix hex.repo add fluxon https://repo.fluxonui.com \
 gh extension install thiagokokada/gh-gfm-preview
 
 mix setup
+
+npm ci --prefix .pi/extensions/s3-browser