diff --git a/packages/debug/package.json b/packages/debug/package.json
index a7fafa9b8aea8..910f4ac0cdc5b 100644
--- a/packages/debug/package.json
+++ b/packages/debug/package.json
@@ -17,6 +17,7 @@
     "@theia/variable-resolver": "1.34.0",
     "@theia/workspace": "1.34.0",
     "@vscode/debugprotocol": "^1.51.0",
+    "fast-deep-equal": "^3.1.3",
     "jsonc-parser": "^2.2.0",
     "p-debounce": "^2.1.0"
   },
diff --git a/packages/debug/src/browser/breakpoint/breakpoint-manager.ts b/packages/debug/src/browser/breakpoint/breakpoint-manager.ts
index 8a02b5963630d..e45ed10ab17c6 100644
--- a/packages/debug/src/browser/breakpoint/breakpoint-manager.ts
+++ b/packages/debug/src/browser/breakpoint/breakpoint-manager.ts
@@ -19,6 +19,7 @@ import { Emitter } from '@theia/core/lib/common';
 import { StorageService } from '@theia/core/lib/browser';
 import { Marker } from '@theia/markers/lib/common/marker';
 import { MarkerManager } from '@theia/markers/lib/browser/marker-manager';
+import * as deepEqual from 'fast-deep-equal';
 import URI from '@theia/core/lib/common/uri';
 import { SourceBreakpoint, BREAKPOINT_KIND, ExceptionBreakpoint, FunctionBreakpoint, BaseBreakpoint, InstructionBreakpoint } from './breakpoint-marker';
 
@@ -64,24 +65,15 @@ export class BreakpointManager extends MarkerManager<SourceBreakpoint> {
         const added: SourceBreakpoint[] = [];
         const removed: SourceBreakpoint[] = [];
         const changed: SourceBreakpoint[] = [];
-        const oldMarkers = new Map(result.map(({ data }) => [data.id, data] as [string, SourceBreakpoint]));
+        const oldMarkers = new Map(result.map(({ data }) => [data.id, data]));
         const ids = new Set<string>();
         for (const newMarker of newMarkers) {
             ids.add(newMarker.id);
             const oldMarker = oldMarkers.get(newMarker.id);
             if (!oldMarker) {
                 added.push(newMarker);
-                // @ts-ignore
-            } else {
-                const oldRawKeys = Object.keys(oldMarker.raw);
-                const newRawKeys = Object.keys(newMarker.raw);
-                if (
-                    newRawKeys.length !== oldRawKeys.length
-                    || newRawKeys.some((key: keyof SourceBreakpoint['raw']) => newMarker.raw[key] !== oldMarker.raw[key])
-                    || Object.keys(newMarker).some((key: keyof SourceBreakpoint) => key !== 'raw' && newMarker[key] !== oldMarker[key])
-                ) {
-                    changed.push(newMarker);
-                }
+            } else if (!deepEqual(oldMarker, newMarker)) {
+                changed.push(newMarker);
             }
         }
         for (const [id, data] of oldMarkers.entries()) {