diff --git a/.changeset/mighty-hairs-cover.md b/.changeset/mighty-hairs-cover.md
new file mode 100644
index 0000000..6e2dc38
--- /dev/null
+++ b/.changeset/mighty-hairs-cover.md
@@ -0,0 +1,5 @@
+---
+"@polyipseity/obsidian-plugin-library": minor
+---
+
+Make `onMutate` compare objects deeply when deciding to trigger the callback.
diff --git a/sources/settings.ts b/sources/settings.ts
index 6f6b207..7087821 100644
--- a/sources/settings.ts
+++ b/sources/settings.ts
@@ -71,8 +71,8 @@ export abstract class AbstractSettingsManager<T extends AbstractSettingsManager
 				const settings = this.value,
 					cur = accessor(settings),
 					prev0 = prev
-				if (prev0 !== cur) {
-					prev = cur
+				prev = cur
+				if (!deepEqual(cur, prev0, { strict: true })) {
 					await callback(cur, prev0, settings)
 				}
 			})