diff --git a/src/commands/heatmap.ts b/src/commands/heatmap.ts
index edd448c..cf321b9 100644
--- a/src/commands/heatmap.ts
+++ b/src/commands/heatmap.ts
@@ -28,7 +28,7 @@ Most Rolls: ${intervals.getMaxRollCnt()}`,
             },
             color: infoColor2,
             image: {
-              url: `${config.api.publicDomain}api/heatmap.png`,
+              url: `${config.api.publicDomain}api/heatmap.png?now=${new Date().getTime()}`,
             },
           },
         ],