diff --git a/platform/xdebugger-impl/frontend/src/com/intellij/platform/debugger/impl/frontend/FrontendXDebuggerSession.kt b/platform/xdebugger-impl/frontend/src/com/intellij/platform/debugger/impl/frontend/FrontendXDebuggerSession.kt
index 715b022cb8f2..bccccba57a8c 100644
--- a/platform/xdebugger-impl/frontend/src/com/intellij/platform/debugger/impl/frontend/FrontendXDebuggerSession.kt
+++ b/platform/xdebugger-impl/frontend/src/com/intellij/platform/debugger/impl/frontend/FrontendXDebuggerSession.kt
@@ -179,7 +179,11 @@ internal class FrontendXDebuggerSession private constructor(
           is XDebuggerSessionEvent.SessionResumed -> eventsDispatcher.multicaster.sessionResumed()
           is XDebuggerSessionEvent.SessionStopped -> eventsDispatcher.multicaster.sessionStopped()
           is XDebuggerSessionEvent.SettingsChanged -> eventsDispatcher.multicaster.settingsChanged()
-          is XDebuggerSessionEvent.StackFrameChanged -> eventsDispatcher.multicaster.stackFrameChanged()
+          is XDebuggerSessionEvent.StackFrameChanged -> {
+            withContext(Dispatchers.EDT) {
+              eventsDispatcher.multicaster.stackFrameChanged()
+            }
+          }
         }
       }
     }