diff --git a/.gitignore b/.gitignore
index 73a290dc..9c0110e9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -18,3 +18,4 @@ Gemfile.lock
 spec/dest
 .bundle
 spec/fixtures/.jekyll-metadata
+spec/fixtures/.jekyll-cache
diff --git a/History.markdown b/History.markdown
index 31ffc22f..f3b6c168 100644
--- a/History.markdown
+++ b/History.markdown
@@ -1,6 +1,6 @@
-## HEAD
+## 0.12.0 / 2019-03-21
 
-  * Release 💎 0.11 (#241)
+  * Allow Jekyll v4 (still alpha)
 
 ### Development Fixes
 
diff --git a/jekyll-feed.gemspec b/jekyll-feed.gemspec
index e62f86ba..7bf82b41 100644
--- a/jekyll-feed.gemspec
+++ b/jekyll-feed.gemspec
@@ -18,9 +18,9 @@ Gem::Specification.new do |spec|
   spec.test_files    = spec.files.grep(%r!^(test|spec|features)/!)
   spec.require_paths = ["lib"]
 
-  spec.required_ruby_version = ">= 2.3.0"
+  spec.required_ruby_version = ">= 2.4.0"
 
-  spec.add_dependency "jekyll", "~> 3.3"
+  spec.add_dependency "jekyll", ">= 3.7", "< 5.0"
   spec.add_development_dependency "bundler"
   spec.add_development_dependency "nokogiri", "~> 1.6"
   spec.add_development_dependency "rake", "~> 12.0"
diff --git a/lib/jekyll-feed/version.rb b/lib/jekyll-feed/version.rb
index 2486a2c4..77109412 100644
--- a/lib/jekyll-feed/version.rb
+++ b/lib/jekyll-feed/version.rb
@@ -2,6 +2,6 @@
 
 module Jekyll
   module Feed
-    VERSION = "0.11.0"
+    VERSION = "0.12.0"
   end
 end