diff --git a/src/components/courses/ManageCoursePage.js b/src/components/courses/ManageCoursePage.js
index 455eb97..723b710 100644
--- a/src/components/courses/ManageCoursePage.js
+++ b/src/components/courses/ManageCoursePage.js
@@ -25,7 +25,22 @@ function ManageCoursePage({ courses, authors, actions, ...props }) {
     }
   }, []);
 
-  return <CourseForm course={course} errors={errors} authors={authors} />;
+  function handleChange(event) {
+    const { name, value } = event.target;
+    setCourse((prevCourse) => ({
+      ...prevCourse,
+      [name]: name === "authorId" ? parseInt(value, 10) : value
+    }));
+  }
+
+  return (
+    <CourseForm
+      course={course}
+      errors={errors}
+      authors={authors}
+      onChange={handleChange}
+    />
+  );
 }
 
 ManageCoursePage.propTypes = {