diff --git a/index.html b/index.html
index ddde999..f7b372b 100644
--- a/index.html
+++ b/index.html
@@ -31,7 +31,7 @@
         'source': {
             'type': 'raster',
             'tiles': [
-                'http://gis.nemac.org/nfwf?bbox={bbox-epsg-3857}&format=image/png&service=WMS&version=1.1.1&request=GetMap&srs=EPSG:3857&width=256&height=256layer=NA_ExposureIndex'
+                'https://://gis.nemac.org/nfwf?bbox={bbox-epsg-3857}&format=image/png&service=WMS&version=1.1.1&request=GetMap&srs=EPSG:3857&width=256&height=256layer=NA_ExposureIndex'
             ],
             'tileSize': 256
         },