diff --git a/docs/Gemfile b/docs/Gemfile
index fbd458f7..3de9b155 100644
--- a/docs/Gemfile
+++ b/docs/Gemfile
@@ -1,6 +1,6 @@
 source "https://rubygems.org"
 
-gem "just-the-docs"
-gem "jekyll-github-metadata", ">= 2.15"
-gem "jekyll-include-cache", group: :jekyll_plugins
-gem "html-proofer", "~> 5.0", :group => :development
+gem "just-the-docs", "0.8.2"
+gem "jekyll-github-metadata", "2.16.1"
+gem "jekyll-include-cache", "0.2.1", group: :jekyll_plugins
+gem "html-proofer", "5.0.9", :group => :development