diff --git a/src/index.js.flow b/src/index.js.flow
index 9850e19ff8..bee1106080 100644
--- a/src/index.js.flow
+++ b/src/index.js.flow
@@ -518,13 +518,13 @@ declare module.exports: {
   set: (
     date: Date | number,
     values: {
-      year: number,
-      month: number,
-      date: number,
-      hours: number,
-      minutes: number,
-      seconds: number,
-      milliseconds: number
+      year?: number,
+      month?: number,
+      date?: number,
+      hours?: number,
+      minutes?: number,
+      seconds?: number,
+      milliseconds?: number
     }
   ) => Date,
 
diff --git a/src/set/index.js b/src/set/index.js
index c4c777e4a5..8622119a33 100644
--- a/src/set/index.js
+++ b/src/set/index.js
@@ -19,13 +19,13 @@ import toInteger from '../_lib/toInteger/index.js'
  *
  * @param {Date|Number} date - the date to be changed
  * @param {Object} values - an object with options
- * @param {Number} values.year - the number of years to be set
- * @param {Number} values.month - the number of months to be set
- * @param {Number} values.date - the number of days to be set
- * @param {Number} values.hours - the number of hours to be set
- * @param {Number} values.minutes - the number of minutes to be set
- * @param {Number} values.seconds - the number of seconds to be set
- * @param {Number} values.milliseconds - the number of milliseconds to be set
+ * @param {Number} [values.year] - the number of years to be set
+ * @param {Number} [values.month] - the number of months to be set
+ * @param {Number} [values.date] - the number of days to be set
+ * @param {Number} [values.hours] - the number of hours to be set
+ * @param {Number} [values.minutes] - the number of minutes to be set
+ * @param {Number} [values.seconds] - the number of seconds to be set
+ * @param {Number} [values.milliseconds] - the number of milliseconds to be set
  * @returns {Date} the new date with options set
  * @throws {TypeError} 2 arguments required
  * @throws {RangeError} `values` must be an object
diff --git a/src/set/index.js.flow b/src/set/index.js.flow
index eb861d5f8d..2d2e16f593 100644
--- a/src/set/index.js.flow
+++ b/src/set/index.js.flow
@@ -38,12 +38,12 @@ type Locale = {
 declare module.exports: (
   date: Date | number,
   values: {
-    year: number,
-    month: number,
-    date: number,
-    hours: number,
-    minutes: number,
-    seconds: number,
-    milliseconds: number
+    year?: number,
+    month?: number,
+    date?: number,
+    hours?: number,
+    minutes?: number,
+    seconds?: number,
+    milliseconds?: number
   }
 ) => Date
diff --git a/typings.d.ts b/typings.d.ts
index 206c3162f9..999f527b1a 100644
--- a/typings.d.ts
+++ b/typings.d.ts
@@ -715,13 +715,13 @@ declare module 'date-fns' {
   function set(
     date: Date | number,
     values: {
-      year: number
-      month: number
-      date: number
-      hours: number
-      minutes: number
-      seconds: number
-      milliseconds: number
+      year?: number
+      month?: number
+      date?: number
+      hours?: number
+      minutes?: number
+      seconds?: number
+      milliseconds?: number
     }
   ): Date
   namespace set {}
@@ -7564,13 +7564,13 @@ declare module 'date-fns/esm' {
   function set(
     date: Date | number,
     values: {
-      year: number
-      month: number
-      date: number
-      hours: number
-      minutes: number
-      seconds: number
-      milliseconds: number
+      year?: number
+      month?: number
+      date?: number
+      hours?: number
+      minutes?: number
+      seconds?: number
+      milliseconds?: number
     }
   ): Date
   namespace set {}
@@ -16430,13 +16430,13 @@ interface dateFns {
   set(
     date: Date | number,
     values: {
-      year: number
-      month: number
-      date: number
-      hours: number
-      minutes: number
-      seconds: number
-      milliseconds: number
+      year?: number
+      month?: number
+      date?: number
+      hours?: number
+      minutes?: number
+      seconds?: number
+      milliseconds?: number
     }
   ): Date