diff --git a/frontend/src/features/dashboard/hooks/useVisualizationData.ts b/frontend/src/features/dashboard/hooks/useVisualizationData.ts
index 593ad80ce..a846121c5 100644
--- a/frontend/src/features/dashboard/hooks/useVisualizationData.ts
+++ b/frontend/src/features/dashboard/hooks/useVisualizationData.ts
@@ -15,8 +15,8 @@ const EMPTY_FILTERS: FilterType[] = []
 
 export const VISUALIZATION_DATA_QUERY_KEYS = {
   all: ['visualization-data'] as const,
-  forViz: (vizId: string, fromISO: string, toISO: string, filtersKey: string) =>
-    [...VISUALIZATION_DATA_QUERY_KEYS.all, vizId, fromISO, toISO, filtersKey] as const,
+  forViz: (vizId: string, fromISO: string, toISO: string, filtersKey: string, specKey: string) =>
+    [...VISUALIZATION_DATA_QUERY_KEYS.all, vizId, fromISO, toISO, filtersKey, specKey] as const,
 }
 
 export interface VisualizationData {
@@ -63,7 +63,16 @@ export function useVisualizationData(
 
   return useQuery<VisualizationData>({
     queryKey: visualization
-      ? VISUALIZATION_DATA_QUERY_KEYS.forViz(visualization.id, fromISO, toISO, filtersKey)
+      ? VISUALIZATION_DATA_QUERY_KEYS.forViz(
+          visualization.id,
+          fromISO,
+          toISO,
+          filtersKey,
+          // The saved spec decides what the backend queries. Without it in the
+          // key, editing a widget leaves the old data cached and staleTime
+          // keeps serving it after returning to the dashboard.
+          visualization.spec,
+        )
       : [...VISUALIZATION_DATA_QUERY_KEYS.all, 'noop'],
     queryFn: async () => {
       if (!spec) return { rows: [], total: 0 }