diff --git a/frontend/src/certs/index.tsx b/frontend/src/certs/index.tsx
index 249c5ff..0183a94 100644
--- a/frontend/src/certs/index.tsx
+++ b/frontend/src/certs/index.tsx
@@ -85,8 +85,15 @@ function CoursesProvider(props: {courses: Resource<Course[]>, children: JSX.Elem
     );
 }
 
+let cachedCourses: Array<Course> | null = null;
+
 async function fetchAllCourses(): Promise<Array<Course>> {
+    if (cachedCourses !== null) {
+        return cachedCourses;
+    }
+
     const result = await axios.get<Array<Course>>(`${import.meta.env.VITE_BACKEND_URL}/api/course`);
+    cachedCourses = result.data;
     return result.data;
 }