diff --git a/notebooks/luke-scribe-colab.ipynb b/notebooks/luke-scribe-colab.ipynb
index 7238c57..5b4bb35 100644
--- a/notebooks/luke-scribe-colab.ipynb
+++ b/notebooks/luke-scribe-colab.ipynb
@@ -40,7 +40,7 @@
    "execution_count": null,
    "metadata": {},
    "outputs": [],
-   "source": "# 1) 클론 (private 저장소면 GITEA_TOKEN 입력)\nGITEA_TOKEN = ''  # ← 필요 시 입력: https://git.lukehemmin.com/user/settings/applications\n\nif GITEA_TOKEN:\n    REPO = f'https://{GITEA_TOKEN}@git.lukehemmin.com/lukehemmin/luke_scribe.git'\nelse:\n    REPO = 'https://git.lukehemmin.com/lukehemmin/luke_scribe.git'\n\n!rm -rf luke_scribe\n!git clone -b feat/full-platform {REPO}\nimport os\nos.chdir('/content/luke_scribe')\nprint('클론 완료 →', os.getcwd())\n!git log --oneline -1\n"
+   "source": "# 1) 클론 또는 업데이트 (private 저장소면 GITEA_TOKEN 입력)\nGITEA_TOKEN = ''  # ← 필요 시 입력: https://git.lukehemmin.com/user/settings/applications\n\nif GITEA_TOKEN:\n    REPO = f'https://{GITEA_TOKEN}@git.lukehemmin.com/lukehemmin/luke_scribe.git'\nelse:\n    REPO = 'https://git.lukehemmin.com/lukehemmin/luke_scribe.git'\n\nimport os, subprocess\n\nif os.path.isdir('/content/luke_scribe/.git'):\n    # 이미 클론된 레포 → 최신 브랜치로 갱신 (pull)\n    print('기존 레포 감지 → pull로 갱신')\n    subprocess.run(['git', 'fetch', 'origin'], cwd='/content/luke_scribe', check=True)\n    subprocess.run(['git', 'checkout', 'feat/full-platform'], cwd='/content/luke_scribe', check=True)\n    subprocess.run(['git', 'pull', '--ff-only', 'origin', 'feat/full-platform'], cwd='/content/luke_scribe', check=True)\nelse:\n    # 최초 실행 → 클론\n    subprocess.run(['git', 'clone', '-b', 'feat/full-platform', REPO], cwd='/content', check=True)\n\nos.chdir('/content/luke_scribe')\nprint('작업 디렉터리 →', os.getcwd())\n!git log --oneline -1\n"
   },
   {
    "cell_type": "markdown",
diff --git a/scripts/build_colab_notebook.py b/scripts/build_colab_notebook.py
index 5c0fa03..3ac50ba 100644
--- a/scripts/build_colab_notebook.py
+++ b/scripts/build_colab_notebook.py
@@ -70,7 +70,7 @@ def cells() -> list[dict]:
             "저장소가 private이면 아래 셀의 `GITEA_TOKEN`에 토큰을 입력하세요."
         ),
         code(
-            "# 1) 클론 (private 저장소면 GITEA_TOKEN 입력)\n"
+            "# 1) 클론 또는 업데이트 (private 저장소면 GITEA_TOKEN 입력)\n"
             "GITEA_TOKEN = ''  # ← 필요 시 입력: https://git.lukehemmin.com/user/settings/applications\n"
             "\n"
             "if GITEA_TOKEN:\n"
@@ -78,11 +78,20 @@ def cells() -> list[dict]:
             "else:\n"
             "    REPO = 'https://git.lukehemmin.com/lukehemmin/luke_scribe.git'\n"
             "\n"
-            "!rm -rf luke_scribe\n"
-            "!git clone -b feat/full-platform {REPO}\n"
-            "import os\n"
+            "import os, subprocess\n"
+            "\n"
+            "if os.path.isdir('/content/luke_scribe/.git'):\n"
+            "    # 이미 클론된 레포 → 최신 브랜치로 갱신 (pull)\n"
+            "    print('기존 레포 감지 → pull로 갱신')\n"
+            "    subprocess.run(['git', 'fetch', 'origin'], cwd='/content/luke_scribe', check=True)\n"
+            "    subprocess.run(['git', 'checkout', 'feat/full-platform'], cwd='/content/luke_scribe', check=True)\n"
+            "    subprocess.run(['git', 'pull', '--ff-only', 'origin', 'feat/full-platform'], cwd='/content/luke_scribe', check=True)\n"
+            "else:\n"
+            "    # 최초 실행 → 클론\n"
+            "    subprocess.run(['git', 'clone', '-b', 'feat/full-platform', REPO], cwd='/content', check=True)\n"
+            "\n"
             "os.chdir('/content/luke_scribe')\n"
-            "print('클론 완료 →', os.getcwd())\n"
+            "print('작업 디렉터리 →', os.getcwd())\n"
             "!git log --oneline -1\n"
         ),
         md("## 2) 시스템 의존성 + 설치\n\nffmpeg(오디오 정규화) 설치 후 venv에 luke-scribe를 설치합니다."),