diff --git a/Library/Homebrew/version.rb b/Library/Homebrew/version.rb
index 80bbc8833f..7f9bdee652 100644
--- a/Library/Homebrew/version.rb
+++ b/Library/Homebrew/version.rb
@@ -458,7 +458,7 @@ class Version
     # e.g. https://github.com/dlang/dmd/archive/v2.074.0-beta1.tar.gz
     # e.g. https://github.com/dlang/dmd/archive/v2.074.0-rc1.tar.gz
     # e.g. https://github.com/premake/premake-core/releases/download/v5.0.0-alpha10/premake-5.0.0-alpha10-src.zip
-    StemParser.new(/[-.vV]?(#{DOT_REQUIRED}#{ALPHA_SUFFIX})/),
+    StemParser.new(/[.-vV]?(#{DOT_REQUIRED}#{ALPHA_SUFFIX})/),
 
     # e.g. foobar4.5.1
     StemParser.new(/(#{DOT_OPTIONAL})$/),
@@ -496,7 +496,7 @@ class Version
     StemParser.new(/\.v(\d+[a-z]?)/),
 
     # e.g. https://secure.php.net/get/php-7.1.10.tar.bz2/from/this/mirror
-    UrlParser.new(/[-.vV]?(#{DOT_REQUIRED}#{ALPHA_SUFFIX}?)/),
+    UrlParser.new(/[.-vV]?(#{DOT_REQUIRED}#{ALPHA_SUFFIX}?)/),
   ].freeze
   private_constant :VERSION_PARSERS