diff --git a/.claude-plugin/plugin.json b/.claude-plugin/plugin.json
index b69e6fa..d7a501c 100644
--- a/.claude-plugin/plugin.json
+++ b/.claude-plugin/plugin.json
@@ -1,6 +1,6 @@
 {
 	"name": "diffdeck",
-	"version": "1.5.0",
+	"version": "1.5.1",
 	"description": "Launch the diffdeck local diff viewer in the browser to show code changes visually to the human.",
 	"author": {
 		"name": "say8425",
diff --git a/.codex-plugin/plugin.json b/.codex-plugin/plugin.json
index ca218ae..5d6996a 100644
--- a/.codex-plugin/plugin.json
+++ b/.codex-plugin/plugin.json
@@ -1,6 +1,6 @@
 {
 	"name": "diffdeck",
-	"version": "1.5.0",
+	"version": "1.5.1",
 	"description": "Launch the diffdeck local diff viewer in the browser to show code changes visually to the human.",
 	"author": {
 		"name": "say8425",
diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index bdc9451..09cbcec 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-	"apps/viewer": "1.5.0"
+	"apps/viewer": "1.5.1"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index baeb9c0..d81cd59 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,19 @@
 # Changelog
 
+## [1.5.1](https://github.com/say8425/diffdeck/compare/diffdeck-v1.5.0...diffdeck-v1.5.1) (2026-09-21)
+
+
+### Bug Fixes
+
+* summary.ts의 git 호출도 `$` 대신 Bun.spawn 헬퍼로 읽는다 ([#77](https://github.com/say8425/diffdeck/issues/77)) ([03ce8d9](https://github.com/say8425/diffdeck/commit/03ce8d9bae1a81fabd9fde606485f4f2a65482e6))
+* 출력이 64KB를 넘을 수 있는 나머지 git 호출도 Bun.spawn 헬퍼로 읽는다 ([#78](https://github.com/say8425/diffdeck/issues/78)) ([2802806](https://github.com/say8425/diffdeck/commit/2802806500887a058f0d42ea2bce7c23d4742ece))
+* 큰 blob이 섞인 diff가 45초 뒤 503으로 떨어지던 것을 고친다 ([#74](https://github.com/say8425/diffdeck/issues/74)) ([94800b3](https://github.com/say8425/diffdeck/commit/94800b36f12cc86786697eec10f44cfee6ac7d9f))
+
+
+### Performance Improvements
+
+* 변경 폴에서 바뀌지 않은 blob의 git show를 blob OID 캐시로 건너뛴다 ([#79](https://github.com/say8425/diffdeck/issues/79)) ([35f3b0b](https://github.com/say8425/diffdeck/commit/35f3b0b621e31bedff2d7934c56a8f9d068303c0))
+
 ## [1.5.0](https://github.com/say8425/diffdeck/compare/diffdeck-v1.4.0...diffdeck-v1.5.0) (2026-09-04)
 
 
diff --git a/apps/viewer/package.json b/apps/viewer/package.json
index eaa3460..d484b91 100644
--- a/apps/viewer/package.json
+++ b/apps/viewer/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "@say8425/diffdeck",
-	"version": "1.5.0",
+	"version": "1.5.1",
 	"description": "Local git diff viewer — browse working-tree and branch diffs in your browser",
 	"license": "Apache-2.0",
 	"repository": {