diff --git a/lib/common/models/wp_item/versionable.rb b/lib/common/models/wp_item/versionable.rb
index 00ee110e..f48b300a 100755
--- a/lib/common/models/wp_item/versionable.rb
+++ b/lib/common/models/wp_item/versionable.rb
@@ -13,9 +13,9 @@ class WpItem
         # This check is needed because readme_url can return nil
         if has_readme?
           response = Browser.get(readme_url)
-          version = response.body[/(?:stable tag|version):\s*(?!trunk)([0-9a-z.-]+)/i, 1]
+          version = response.body[/(?:stable tag|version):\s*(?!trunk)([0-9a-z\.-]+)/i, 1]
           if version.nil?
-            extracted_versions = response.body.scan(/[=]+\s*([0-9.-]+)\s*[=]+/i)
+            extracted_versions = response.body.scan(/[=]+\s*([0-9\.-]+)\s*[=]+/i)
             return if extracted_versions.nil? || extracted_versions.length == 0
             sorted = extracted_versions.flatten.sort { |x,y| Gem::Version.new(x) <=> Gem::Version.new(y) }
             @version = sorted.last