diff --git a/src/test/week_number_test.test.tsx b/src/test/week_number_test.test.tsx
index baa704cfa..46f105532 100644
--- a/src/test/week_number_test.test.tsx
+++ b/src/test/week_number_test.test.tsx
@@ -186,11 +186,6 @@ describe("WeekNumber", () => {
         ) as HTMLDivElement;
         expect(weekNumber).not.toBeNull();
 
-        expect(
-          weekNumber?.classList.contains(
-            "react-datepicker__week-number--keyboard-selected",
-          ),
-        ).toBe(false);
         expect(weekNumber?.tabIndex).toBe(0);
       });
 
@@ -212,11 +207,6 @@ describe("WeekNumber", () => {
           ".react-datepicker__week-number",
         ) as HTMLDivElement;
         expect(weekNumber).not.toBeNull();
-        expect(
-          weekNumber?.classList.contains(
-            "react-datepicker__week-number--keyboard-selected",
-          ),
-        ).toBe(true);
         expect(weekNumber.tabIndex).toBe(0);
       });
 
@@ -267,11 +257,6 @@ describe("WeekNumber", () => {
         const weekNumber = container.querySelector(
           ".react-datepicker__week-number",
         ) as HTMLDivElement;
-        expect(
-          weekNumber?.classList.contains(
-            "react-datepicker__week-number--keyboard-selected",
-          ),
-        ).toBe(false);
         expect(weekNumber.tabIndex).toBe(-1);
       });
     });
@@ -383,59 +368,6 @@ describe("WeekNumber", () => {
           ),
         ).toBe(false);
       });
-
-      it("should have the class 'react-datepicker__week-number--selected' if selected is not current week and preselected is current week", () => {
-        const currentWeekNumber = newDate("2023-10-22T13:09:53+02:00");
-        const selected = addWeeks(currentWeekNumber, 1);
-        const { container } = render(
-          <WeekNumber
-            weekNumber={1}
-            date={currentWeekNumber}
-            selected={selected}
-            preSelection={currentWeekNumber}
-          />,
-        );
-        const weekNumber = container.querySelector(
-          ".react-datepicker__week-number",
-        );
-        expect(
-          weekNumber?.classList.contains(
-            "react-datepicker__week-number--selected",
-          ),
-        ).toBe(false);
-        expect(
-          weekNumber?.classList.contains(
-            "react-datepicker__week-number--keyboard-selected",
-          ),
-        ).toBe(true);
-      });
-
-      it("should have the class 'react-datepicker__week-number--selected' if selected is not current week and preselected is not current week", () => {
-        const currentWeekNumber = newDate("2023-10-22T13:09:53+02:00");
-        const selected = addWeeks(currentWeekNumber, 1);
-        const preSelection = addWeeks(currentWeekNumber, 2);
-        const { container } = render(
-          <WeekNumber
-            weekNumber={1}
-            date={currentWeekNumber}
-            selected={selected}
-            preSelection={preSelection}
-          />,
-        );
-        const weekNumber = container.querySelector(
-          ".react-datepicker__week-number",
-        );
-        expect(
-          weekNumber?.classList.contains(
-            "react-datepicker__week-number--selected",
-          ),
-        ).toBe(false);
-        expect(
-          weekNumber?.classList.contains(
-            "react-datepicker__week-number--keyboard-selected",
-          ),
-        ).toBe(false);
-      });
     });
   });
 
diff --git a/src/week_number.tsx b/src/week_number.tsx
index 0340466ab..e244916e1 100644
--- a/src/week_number.tsx
+++ b/src/week_number.tsx
@@ -120,8 +120,6 @@ export default class WeekNumber extends Component<WeekNumberProps> {
       "react-datepicker__week-number--clickable": !!onClick,
       "react-datepicker__week-number--selected":
         !!onClick && isSameDay(this.props.date, this.props.selected),
-      "react-datepicker__week-number--keyboard-selected":
-        this.isKeyboardSelected(),
     };
     return (
       <div