diff --git a/Mapping DHS with leaflet.ipynb b/Mapping DHS with leaflet.ipynb
index 7e1cd1c..2576f45 100644
--- a/Mapping DHS with leaflet.ipynb	
+++ b/Mapping DHS with leaflet.ipynb	
@@ -384,7 +384,7 @@
     "                    <title>Leaflet Layers Control Example</title>\n",
     "                    <meta charset=\"utf-8\" />\n",
     "                    <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n",
-    "                    <link rel=\"stylesheet\" href=\"https://npmcdn.com/leaflet@1.0.0-rc.3/dist/leaflet.css\" />\n",
+    "                    <link rel=\"stylesheet\" href=\"https://unpkg.com/leaflet@1.0.0-rc.3/dist/leaflet.css\" />\n",
     "                    <style>\n",
     "                        #map {\n",
     "                            width: 800px;\n",
@@ -421,7 +421,7 @@
     "                <body>\n",
     "                    <div id=\"map\"></div>\n",
     "\n",
-    "                    <script src=\"https://npmcdn.com/leaflet@1.0.0-rc.3/dist/leaflet.js\"></script>\n",
+    "                    <script src=\"https://unpkg.com/leaflet@1.0.0-rc.3/dist/leaflet.js\"></script>\n",
     "\n",
     "                    <script type=\"text/javascript\" src=\"$iso.js\"></script>\n",
     "                    <script type=\"text/javascript\">\n",
