diff --git a/packages/cubejs-client-core/index.d.ts b/packages/cubejs-client-core/index.d.ts
index 1483af07dfb61..d91b2f421d701 100644
--- a/packages/cubejs-client-core/index.d.ts
+++ b/packages/cubejs-client-core/index.d.ts
@@ -943,10 +943,15 @@ declare module '@cubejs-client/core' {
     format?: 'currency' | 'percent';
   };
 
+  export type TCubeTimeDimensionGranularity = {
+    name: string;
+    title: string;
+  }
+
   export type TCubeDimension = BaseCubeMember & {
     primaryKey?: boolean;
     suggestFilterValues: boolean;
-  };
+  } & (BaseCubeMember["type"] extends 'time' ? { granularities?: TCubeTimeDimensionGranularity[] } : {});
 
   export type TCubeSegment = Omit<BaseCubeMember, 'type'>;