diff --git a/plugins/legacy-plugin-chart-world-map/package.json b/plugins/legacy-plugin-chart-world-map/package.json
index 988b61ce2d..5163809078 100644
--- a/plugins/legacy-plugin-chart-world-map/package.json
+++ b/plugins/legacy-plugin-chart-world-map/package.json
@@ -28,7 +28,9 @@
     "access": "public"
   },
   "dependencies": {
+    "@superset-ui/color": "^0.14.9",
     "d3": "^3.5.17",
+    "d3-array": "^2.4.0",
     "datamaps": "^0.5.8",
     "prop-types": "^15.6.2"
   },
diff --git a/plugins/legacy-plugin-chart-world-map/src/WorldMap.js b/plugins/legacy-plugin-chart-world-map/src/WorldMap.js
index 8a3900bb67..a980b8db9c 100644
--- a/plugins/legacy-plugin-chart-world-map/src/WorldMap.js
+++ b/plugins/legacy-plugin-chart-world-map/src/WorldMap.js
@@ -53,8 +53,7 @@ function WorldMap(element, props) {
   // Ignore XXX's to get better normalization
   const filteredData = data.filter(d => d.country && d.country !== 'XXX');
 
-  const ext = d3.extent(filteredData, d => d.m1);
-  const extRadius = d3.extent(filteredData, d => d.m2);
+  const extRadius = d3.extent(filteredData, d => Math.sqrt(d.m2));
   const radiusScale = d3.scale
     .linear()
     .domain([extRadius[0], extRadius[1]])
@@ -66,7 +65,7 @@ function WorldMap(element, props) {
 
   const processedData = filteredData.map(d => ({
     ...d,
-    radius: radiusScale(d.m2),
+    radius: radiusScale(Math.sqrt(d.m2)),
     fillColor: colorScale(d.m1),
   }));