diff --git a/Gemfile b/Gemfile
index 9c6f44dd7..c83f9a4dc 100644
--- a/Gemfile
+++ b/Gemfile
@@ -16,7 +16,7 @@ gem "github-pages", "~> 227", group: :jekyll_plugins
 # If you have any plugins, put them here!
 group :jekyll_plugins do
   gem "jekyll-feed", "~> 0.12"
-  gem "jekyll-spaceship"
+  gem "jekyll-spaceship", "~> 0.9.9"
 end
 
 # Windows and JRuby does not include zoneinfo files, so bundle the tzinfo-data gem