diff --git a/public/js/lessons.js b/public/js/lessons.js
index 0733d54..d941d51 100644
--- a/public/js/lessons.js
+++ b/public/js/lessons.js
@@ -159,6 +159,7 @@ document.getElementById('searchInput').addEventListener('input', () => {
 });
 
 let lessonLiveSource = null;
+let lessonRefreshTimer = null;
 
 function connectLessonLive() {
   if (lessonLiveSource) { lessonLiveSource.close(); lessonLiveSource = null; }
@@ -166,6 +167,13 @@ function connectLessonLive() {
     const t = sessionStorage.getItem('authToken');
     if (!t) return;
     lessonLiveSource = new EventSource(`${API}/api/events?token=${encodeURIComponent(t)}`);
+    lessonLiveSource.addEventListener('lessons_changed', () => {
+      if (lessonRefreshTimer) return;
+      lessonRefreshTimer = setTimeout(() => {
+        lessonRefreshTimer = null;
+        loadLessons();
+      }, 300);
+    });
     lessonLiveSource.addEventListener('lesson_report_status', () => loadLessons());
     lessonLiveSource.onerror = () => {
       if (lessonLiveSource) { lessonLiveSource.close(); lessonLiveSource = null; }
diff --git a/server.js b/server.js
index e0b74b4..6015f06 100644
--- a/server.js
+++ b/server.js
@@ -118,7 +118,10 @@ function invalidateSettings() { cacheDrop('setting:'); cacheDrop('share:payload:
 function invalidateStudents() { cacheDrop('students:'); }
 function invalidateGroups() { cacheDrop('groups:'); cacheDrop('students:'); cacheDrop('share:payload:'); }
 function invalidateEntries() { cacheDrop('entries:'); cacheDrop('students:'); cacheDrop('share:payload:'); }
-function invalidateLessonReports() { cacheDrop('lessons:'); cacheDrop('stats:'); cacheDrop('dashboard:'); }
+function invalidateLessonReports() {
+  cacheDrop('lessons:'); cacheDrop('stats:'); cacheDrop('dashboard:');
+  broadcastLessonChanged();
+}
 function invalidateSessions() { cacheDrop('session:'); }
 function invalidateApiKeys() { cacheDrop('apikey:'); cacheDrop('rl:apikey'); }