diff --git a/tutorials/isamples_explorer.qmd b/tutorials/isamples_explorer.qmd
index aea5c32..4bdae3e 100644
--- a/tutorials/isamples_explorer.qmd
+++ b/tutorials/isamples_explorer.qmd
@@ -38,7 +38,7 @@ cross_filter_url = "https://data.isamples.org/isamples_202601_facet_cross_filter
 sample_facets_url = "https://data.isamples.org/isamples_202601_sample_facets_v2.parquet"
 
 // Source color scheme — imported from canonical palette (issue #113)
-_palette = await import('../assets/js/source-palette.js')
+_palette = await import(new URL('/assets/js/source-palette.js', document.baseURI).href)
 SOURCE_COLORS = _palette.SOURCE_COLORS
 
 // Cesium colors
diff --git a/tutorials/parquet_cesium_isamples_wide.qmd b/tutorials/parquet_cesium_isamples_wide.qmd
index 8ef1469..b748070 100644
--- a/tutorials/parquet_cesium_isamples_wide.qmd
+++ b/tutorials/parquet_cesium_isamples_wide.qmd
@@ -96,7 +96,7 @@ viewof viewModeToggle = Inputs.radio(["clustered", "all points"], {
 ```{ojs}
 //| echo: false
 // Source color scheme — imported from canonical palette (issue #113)
-_palette = await import('../assets/js/source-palette.js')
+_palette = await import(new URL('/assets/js/source-palette.js', document.baseURI).href)
 CLUSTER_COLORS = _palette.SOURCE_COLORS
 
 // H3 resolution based on camera height
diff --git a/tutorials/progressive_globe.qmd b/tutorials/progressive_globe.qmd
index c30b25b..42c0bac 100644
--- a/tutorials/progressive_globe.qmd
+++ b/tutorials/progressive_globe.qmd
@@ -207,7 +207,7 @@ facets_url = `${R2_BASE}/isamples_202601_sample_facets.parquet`
 facet_summaries_url = `${R2_BASE}/isamples_202601_facet_summaries.parquet`
 
 // Canonical palette — see issue #113
-_palette = await import('../assets/js/source-palette.js')
+_palette = await import(new URL('/assets/js/source-palette.js', document.baseURI).href)
 SOURCE_COLORS = _palette.SOURCE_COLORS
 SOURCE_NAMES = _palette.SOURCE_NAMES