diff --git a/Gemfile b/Gemfile
index 832d274..02a1685 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,17 +1,17 @@
 source 'https://rubygems.org'
 
-gem "jekyll"
+gem "jekyll", ">= 4.0.0"
 
 group :jekyll_plugins do
     # gem "github-pages"
     gem "jekyll-gist"
-    gem "jekyll-sitemap"
+    gem "jekyll-sitemap", ">= 1.3.0"
     # gem "jekyll-feed"
-    gem "jekyll-seo-tag"
-    gem "jekyll-relative-links"
-    gem "jekyll-paginate-v2"
+    gem "jekyll-seo-tag", ">= 2.6.1"
+    gem "jekyll-relative-links", ">= 0.6.1"
+    gem "jekyll-paginate-v2", ">= 3.0.0"
     # gem "jekyll-toc"
-    gem "jekyll-assets"
+    gem "jekyll-assets", ">= 3.0.6"
 end
 
 gem "nokogiri"