diff --git a/dist/index.js b/dist/index.js
index dc222507..920f5c7d 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -140959,16 +140959,16 @@ function mTags({ tags }) {
 ;// CONCATENATED MODULE: ./src/summary.ts
 
 
-function summaryMarkdown(library, date, bookStatus) {
+function summaryMarkdown(library, dateType, bookStatus) {
     const { BookTitle } = process.env;
     return `# Updated library
 
 ${capitalize(`${bookStatus}`)}: “${BookTitle}”
-Date: ${date}
+Date: ${dateType.dateFinished}
 Book status: ${bookStatus}
-Result: ${bookStatus === "finished" && date}
-${bookStatus === "finished" && date
-        ? yearReviewSummary(library, date.slice(0, 4))
+Result: ${bookStatus === "finished" && dateType.dateFinished}
+${bookStatus === "finished" && dateType.dateFinished
+        ? yearReviewSummary(library, dateType.dateFinished.slice(0, 4))
         : ""}
 `;
 }
@@ -141256,7 +141256,9 @@ async function read() {
         }
         library = sortByDate(library);
         await returnWriteFile(filename, library);
-        await core.summary.addRaw(summaryMarkdown(library, date, bookStatus)).write();
+        await core.summary
+            .addRaw(summaryMarkdown(library, dateType, bookStatus))
+            .write();
     }
     catch (error) {
         (0,core.setFailed)(error);
diff --git a/src/index.ts b/src/index.ts
index b892187b..5713584b 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -105,7 +105,9 @@ export async function read() {
     library = sortByDate(library);
 
     await returnWriteFile(filename, library);
-    await summary.addRaw(summaryMarkdown(library, date, bookStatus)).write();
+    await summary
+      .addRaw(summaryMarkdown(library, dateType, bookStatus))
+      .write();
   } catch (error) {
     setFailed(error);
   }
diff --git a/src/summary.ts b/src/summary.ts
index 87c58444..7a8253a8 100644
--- a/src/summary.ts
+++ b/src/summary.ts
@@ -9,23 +9,23 @@ import {
   mTopAuthors,
   mTags,
 } from "./summary-markdown";
-import { capitalize } from "./utils";
+import { capitalize, DateTypes } from "./utils";
 
 export function summaryMarkdown(
   library: NewBook[],
-  date: BookPayload["date"],
+  dateType: DateTypes,
   bookStatus: BookStatus
 ): string {
   const { BookTitle } = process.env;
   return `# Updated library
 
 ${capitalize(`${bookStatus}`)}: “${BookTitle}”
-Date: ${date}
+Date: ${dateType.dateFinished}
 Book status: ${bookStatus}
-Result: ${bookStatus === "finished" && date}
+Result: ${bookStatus === "finished" && dateType.dateFinished}
 ${
-  bookStatus === "finished" && date
-    ? yearReviewSummary(library, date.slice(0, 4))
+  bookStatus === "finished" && dateType.dateFinished
+    ? yearReviewSummary(library, dateType.dateFinished.slice(0, 4))
     : ""
 }
 `;
diff --git a/src/utils.ts b/src/utils.ts
index 40e4cbe1..5e50bf8e 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -89,18 +89,20 @@ function localDate() {
   return dateFormat.format(new Date());
 }
 
+export type DateTypes = {
+  dateAbandoned?: string;
+  dateStarted?: string;
+  dateFinished?: string;
+  dateAdded?: string;
+};
+
 export function getBookStatus({
   date,
   bookStatus,
 }: {
   date?: string;
   bookStatus?: BookStatus;
-}): {
-  dateAbandoned?: string;
-  dateStarted?: string;
-  dateFinished?: string;
-  dateAdded?: string;
-} {
+}): DateTypes {
   const dateValue = date ?? localDate();
   switch (bookStatus) {
     case "abandoned":