diff --git a/.github/configs/labeler.yml b/.github/configs/labeler.yml
deleted file mode 100644
index 58ec4ab7..00000000
--- a/.github/configs/labeler.yml
+++ /dev/null
@@ -1,13 +0,0 @@
-# NOTE: 추후에 각각 책의 라벨이 추가될 때 마다 확인 후 추가 필요
-
-version: 1
-labels:
-  - label: "2024"
-    files:
-      - "2024/*"
-  - label: "The Psychology of Computer Programming"
-    files:
-      - "2024/ThePsychologyOfComputerProgramming/*"
-  - label: "Patterns of Enterprise Application Architecture"
-    files:
-      - "2024/PatternsOfEnterpriseApplicationArchitecture/*"
diff --git a/.github/workflows/on_pr_opened.yaml b/.github/workflows/on_pr_opened.yaml
index 8dce4af5..d1f9bf70 100644
--- a/.github/workflows/on_pr_opened.yaml
+++ b/.github/workflows/on_pr_opened.yaml
@@ -8,28 +8,6 @@ permissions:
   pull-requests: write
 
 jobs:
-  assign-author:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: toshimaru/auto-author-assign@v2.0.0
-
-  add-reviewer:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v1
-      - uses: ohnogumi/auto-reviewers@v0.0.5
-        with:
-          token: "${{ secrets.GITHUB_TOKEN }}"
-
-  add-label:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: srvaroa/labeler@master
-        with:
-          config_path: .github/configs/labeler.yml
-        env:
-          GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
-
   comment-for-filling-others-like-projects-milestone-development-etc:
     runs-on: ubuntu-latest
     steps: