diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 2d5e23f..205aabf 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -3,7 +3,6 @@ image: python:latest
 before_script:
   - time apt update
   - time pip install -r requirements.txt
-  - time cd mkdocs-ivory && python setup.py install && cd ..
 
 pages:
   stage: deploy
@@ -14,4 +13,10 @@ pages:
       - public
   rules:
     - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
+      changes:
+        - "docs/**/*"
+        - "mkdocs.yml"
+
+
+
 
diff --git a/.gitmodules b/.gitmodules
deleted file mode 100644
index ca47f53..0000000
--- a/.gitmodules
+++ /dev/null
@@ -1,3 +0,0 @@
-[submodule "mkdocs-ivory"]
-	path = mkdocs-ivory
-	url = https://github.com/daizutabi/mkdocs-ivory.git
diff --git a/mkdocs-ivory b/mkdocs-ivory
deleted file mode 160000
index 8d8a9ac..0000000
--- a/mkdocs-ivory
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 8d8a9aca05f611ea1f2742341219bd61b5852c9d