diff --git a/lib/ruby_maven.rb b/lib/ruby_maven.rb
index 9dc5596..2b2628e 100644
--- a/lib/ruby_maven.rb
+++ b/lib/ruby_maven.rb
@@ -69,7 +69,7 @@ def self.launch( *args )
     ENV['M2_HOME'] = Maven.home
 
     extensions = File.join( '.mvn/extensions.xml' )
-    if has_extensions = File.exists?( extensions )
+    if has_extensions = File.exist?( extensions )
       # tests need copy instead of move
       FileUtils.cp( extensions, extensions + ".orig" )
     else
diff --git a/spec/ruby_maven_spec.rb b/spec/ruby_maven_spec.rb
index c33447f..9b3fc22 100644
--- a/spec/ruby_maven_spec.rb
+++ b/spec/ruby_maven_spec.rb
@@ -29,9 +29,9 @@
       RubyMaven.exec( '-Dverbose', 'package', '-Djruby.version=9.3.0.0' )
     end
     _(out).must_match /mvn -Dverbose package/
-    _(File.exists?( gem_name )).must_equal true
-    _(File.exists?( '.mvn/extensions.xml' )).must_equal true
-    _(File.exists?( '.mvn/extensions.xml.orig' )).wont_equal true
+    _(File.exist?( gem_name )).must_equal true
+    _(File.exist?( '.mvn/extensions.xml' )).must_equal true
+    _(File.exist?( '.mvn/extensions.xml.orig' )).wont_equal true
   end
   
 end