diff --git a/_config.yml b/_config.yml
index 093a42a3936991a2e6123fb05b101c4fa5a76c0a..4b938275813238556626fa0cc2696018f24a3e04 100644
--- a/_config.yml
+++ b/_config.yml
@@ -35,3 +35,6 @@ color_scheme: nil
# Google Analytics Tracking (optional)
# e.g, UA-1234567-89
ga_tracking: UA-2709176-10
+
+plugins:
+ - jekyll-seo-tag
\ No newline at end of file
diff --git a/_includes/head.html b/_includes/head.html
index fa5dee7ce16017ab6138a4e0dff9391d9c0055fe..026c68f5870daf5b8b487884eadeaaf7a7ee38df 100644
--- a/_includes/head.html
+++ b/_includes/head.html
@@ -23,4 +23,6 @@
<script type="text/javascript" src="{{ "/assets/js/just-the-docs.js" | absolute_url }}"></script>
<meta name="viewport" content="width=device-width, initial-scale=1">
+
+{% seo %}
</head>
diff --git a/_layouts/default.html b/_layouts/default.html
index 06662ee1c29b30e819f6786974b0d15ae2268b14..2d5fe6ba17de842fe5ebaa64bb05aacd207deb39 100644
--- a/_layouts/default.html
+++ b/_layouts/default.html
@@ -1,6 +1,6 @@
<!DOCTYPE html>
-<html lang="en-us">
+<html lang="{{ site.lang | default: "en-US" }}">
{% include head.html %}
<body>
diff --git a/just-the-docs.gemspec b/just-the-docs.gemspec
index 18e9876b5da76f4108e4ef9859e436446a31fc02..27dfa9b56f01c2ba2829a5723c77879f1a8da520 100644
--- a/just-the-docs.gemspec
+++ b/just-the-docs.gemspec
@@ -2,7 +2,7 @@
Gem::Specification.new do |spec|
spec.name = "just-the-docs"
- spec.version = "0.2.3"
+ spec.version = "0.2.4"
spec.authors = ["Patrick Marsceill"]
spec.email = ["patrick.marsceill@gmail.com"]
@@ -14,6 +14,7 @@ Gem::Specification.new do |spec|
spec.executables << 'just-the-docs'
spec.add_runtime_dependency "jekyll", "~> 3.8.5"
+ spec.add_runtime_dependency "jekyll-seo-tag", "~> 2.0"
spec.add_runtime_dependency "rake", "~> 12.3.1"
spec.add_development_dependency "bundler", "~> 2.0.1"
diff --git a/package.json b/package.json
index 13af889af96b86161f53d068095c798535f3ae9c..35ae6d1cda83dff93d5f89c93c98ca90a0462c78 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
{
"name": "just-the-docs",
- "version": "0.2.3",
+ "version": "0.2.4",
"description": "A modern Jekyll theme for documentation",
"repository": "pmarsceill/just-the-docs",
"license": "MIT",