diff --git a/.github/workflows/build-documents/action.yml b/.github/workflows/build-documents/action.yml
index dae2d0ab0..eda03bd71 100644
--- a/.github/workflows/build-documents/action.yml
+++ b/.github/workflows/build-documents/action.yml
@@ -26,11 +26,6 @@ runs:
       run: |
         python -m pip install "mkdocs-material[imaging]"
         sudo apt-get install pngquant
-    
-    - name: RSS プラグイン用のパッケージインストール
-      shell: bash
-      run: |
-        pip install mkdocs-rss-plugin
 
     - id: setup-version
       name: ドキュメントのバージョン設定
diff --git a/documents/mkdocs.yml b/documents/mkdocs.yml
index 9eae2b2ff..ba429bbd2 100644
--- a/documents/mkdocs.yml
+++ b/documents/mkdocs.yml
@@ -8,6 +8,7 @@ site_author: "アドバンスド開発技術部"
 site_description: "AlesInfiny Maris OSS Edition のポータルサイトです。"
 site_dir: build-artifacts
 
+# yamllint disable rule:comments-indentation
 nav:
   - AlesInfiny Maris OSS Edition にようこそ:
       - index.md
@@ -99,6 +100,7 @@ nav:
       - 利用規約: about-maris/terms.md
       - 商標: about-maris/trademarks.md
       - クレジット表記: about-maris/credits.md
+# yamllint enable rule:comments-indentation
 
 theme:
   name: material
@@ -173,15 +175,16 @@ extra_css:
   - stylesheets/overrides.css
 
 plugins:
-    - search:
-        lang: ja
-    - minify:
-        minify_html: true
-        minify_js: true
-        htmlmin_opts:
-          remove_comments: true
-    - social:
-        enabled: !ENV [BUILD_DOCUMENTS, false]
-        cards_layout_options:
-          font_family: Noto Sans JP
-    - rss
+  - search:
+      lang: ja
+  - minify:
+      minify_html: true
+      minify_js: true
+      htmlmin_opts:
+        remove_comments: true
+  - social:
+      enabled: !ENV [BUILD_DOCUMENTS, false]
+      cards_layout_options:
+        font_family: Noto Sans JP
+  - rss:
+      enabled: !ENV [BUILD_DOCUMENTS, false]
diff --git a/requirements.txt b/requirements.txt
index 63f75bfbb..d64ae3f22 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,3 +3,4 @@ mkdocs==1.5.3
 mkdocs-material==9.5.18
 pymdown-extensions==10.8.1
 mkdocs-minify-plugin==0.8.0
+mkdocs-rss-plugin==1.12.2
\ No newline at end of file