diff --git a/frontend/src/adapters/gateways/EChartsOptionBuilder/wordcloudOptionBuilder.ts b/frontend/src/adapters/gateways/EChartsOptionBuilder/wordcloudOptionBuilder.ts
index a951054..62eb2a0 100644
--- a/frontend/src/adapters/gateways/EChartsOptionBuilder/wordcloudOptionBuilder.ts
+++ b/frontend/src/adapters/gateways/EChartsOptionBuilder/wordcloudOptionBuilder.ts
@@ -82,9 +82,9 @@ function createShapeMask(shape: string, size: number): HTMLCanvasElement | null
     case 'cardioid': {
       ctx.beginPath();
       for (let angle = 0; angle < Math.PI * 2; angle += 0.01) {
-        const rr = r * 0.5 * (1 - Math.sin(angle));
+        const rr = r * 0.85 * (1 - Math.sin(angle));
         const x = cx + rr * Math.cos(angle);
-        const y = cy - rr * Math.sin(angle) + r * 0.15;
+        const y = cy - rr * Math.sin(angle) + r * 0.3;
         if (angle === 0) ctx.moveTo(x, y);
         else ctx.lineTo(x, y);
       }