diff --git a/minimal-mistakes-jekyll.gemspec b/minimal-mistakes-jekyll.gemspec
index cfda04fb..ac7a8259 100644
--- a/minimal-mistakes-jekyll.gemspec
+++ b/minimal-mistakes-jekyll.gemspec
@@ -2,7 +2,7 @@
 
 Gem::Specification.new do |spec|
   spec.name                    = "minimal-mistakes-jekyll"
-  spec.version                 = "4.0.0.pre.beta1"
+  spec.version                 = "4.0.1"
   spec.authors                 = ["Michael Rose"]
 
   spec.summary                 = %q{A flexible two-column Jekyll theme.}
@@ -11,7 +11,12 @@ Gem::Specification.new do |spec|
 
   spec.metadata["plugin_type"] = "theme"
 
-  spec.files                   = `git ls-files -z`.split("\x0").select { |f| f.match(%r{^(_layouts|_includes|_sass|assets|LICENSE|README|CHANGELOG)/i}) }
+  spec.files                   = `git ls-files -z`.split("\x0").select do |f|
+    f.match(%r{^((_includes|_layouts|_sass|assets)/|(LICENSE|README|CHANGELOG)((\.(txt|md|markdown)|$)))}i)
+  end
+
+  spec.bindir                  = "exe"
+  spec.executables             = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
 
   spec.add_development_dependency "jekyll", "~> 3.2"
   spec.add_development_dependency "bundler", "~> 1.12"