diff --git a/lib/tasks/build.rake b/lib/tasks/build.rake
index 8eec866..ef74168 100644
--- a/lib/tasks/build.rake
+++ b/lib/tasks/build.rake
@@ -6,6 +6,20 @@ task build: :test do
   end
   FileUtils.mkdir_p("pkg")
   FileUtils.mv(Dir["*.gem"], "pkg")
+
+  Rake::Task["update_json_schemas"].invoke
+end
+
+desc "Update JSON schemas for github-pages"
+task :update_json_schemas do
+  git_clean = `git status --porcelain`.empty?
+  sh "git stash" unless git_clean
+
+  FileUtils.mkdir_p("docs/schemas")
+  FileUtils.cp(Dir["lib/diaspora_federation/schemas/*.json"], "docs/schemas")
+
+  sh "git add docs/schemas && git diff --staged --quiet || git commit -m 'Update JSON schemas for github-pages'"
+  sh "git stash pop" unless git_clean
 end
 
 desc "Tags version, pushes to remote, and pushes gem"