diff --git a/.github/workflows/ci.yml "b/.github/\330\263\331\212\330\261 \330\247\331\204\330\271\331\205\331\204/ci.yml"
similarity index 97%
rename from .github/workflows/ci.yml
rename to ".github/\330\263\331\212\330\261 \330\247\331\204\330\271\331\205\331\204/ci.yml"
index c9131bcc27..6844af9619 100644
--- a/.github/workflows/ci.yml
+++ "b/.github/\330\263\331\212\330\261 \330\247\331\204\330\271\331\205\331\204/ci.yml"	
@@ -5,7 +5,7 @@ on: [push]
 env:
   CI: true
 
-jobs:
+jobs:#977;
   Build:
     runs-on: ubuntu-latest
     steps:
diff --git a/Gemfile b/Gemfile
index 7594169c0a..02886ea684 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,25 +3,25 @@ ruby '2.6.7'
 
 # essential
 gem 'nanoc', '~> 4.7'
-gem 'nanoc-conref-fs', '~> 0.7'
+gem 'nanoc-conref-fs', '~> 0.7', '>= 0.7.0'
 gem 'nanoc-redirector', '~> 0.2'
 
 # rendering
-gem 'nanoc-html-pipeline', '~> 0.3'
+gem 'nanoc-html-pipeline', '~> 0.3', '>= 0.3.5'
 gem 'gemoji', '2.1.0'
-gem 'html-pipeline-rouge_filter', '~> 1.0'
-gem 'extended-markdown-filter', '~> 0.4'
-gem 'html-pipeline-asciidoc_filter', '~> 1.5'
+gem 'html-pipeline-rouge_filter', '~> 1.0', '>= 1.0.7'
+gem 'extended-markdown-filter', '~> 0.6', '>= 0.6.0'
+gem 'html-pipeline-asciidoc_filter', '~> 1.5', '>= 1.5.3'
 gem 'github-markdown', '~> 0.6.9'
 gem 'kramdown'
 gem 'kramdown-parser-gfm'
 
-gem 'activesupport', '~> 4.2'
+gem 'activesupport', '~> 4.2', '>= 4.2.10'
 gem 'rake'
 gem 'pry'
 gem 'pry-coolline'
 
 group :test do
   gem 'colorize', '~> 0.8.1'
-  gem 'html-proofer', '~> 3.7'
+  gem 'html-proofer', '~> 3.9', '>= 3.9.2'
 end