diff --git a/tests/SAX/test_WhitespaceStripper.hpp b/tests/SAX/test_WhitespaceStripper.hpp
index aab39930..ab6b8e2e 100644
--- a/tests/SAX/test_WhitespaceStripper.hpp
+++ b/tests/SAX/test_WhitespaceStripper.hpp
@@ -125,11 +125,11 @@ class WhitespaceStripperTest : public TestCase
     } // testStrip
 
   private:
-    std::auto_ptr<Arabica::SAX::InputSource<std::string> > source(const std::string& str)
+    std::unique_ptr<Arabica::SAX::InputSource<std::string> > source(const std::string& str)
     {
-      std::auto_ptr<std::iostream> ss(new std::stringstream());
+      std::unique_ptr<std::iostream> ss(new std::stringstream());
       (*ss) << str;
-      return std::auto_ptr<Arabica::SAX::InputSource<std::string> >(new Arabica::SAX::InputSource<std::string>(ss));
+      return std::make_unique<Arabica::SAX::InputSource<std::string>>(std::move(ss));
     } // source
 }; // WhitespaceStripperTest
 
diff --git a/tests/Taggle/test_Taggle.hpp b/tests/Taggle/test_Taggle.hpp
index 36a40dc3..dbf602ff 100644
--- a/tests/Taggle/test_Taggle.hpp
+++ b/tests/Taggle/test_Taggle.hpp
@@ -35,11 +35,11 @@ class TaggleTest : public TestCase
     } // senseTest
 
   private:
-    std::auto_ptr<Arabica::SAX::InputSource<std::string> > source(const std::string& str)
+    std::unique_ptr<Arabica::SAX::InputSource<std::string> > source(const std::string& str)
     {
-      std::auto_ptr<std::iostream> ss(new std::stringstream());
+      std::unique_ptr<std::iostream> ss(new std::stringstream());
       (*ss) << str;
-      return std::auto_ptr<Arabica::SAX::InputSource<std::string> >(new Arabica::SAX::InputSource<std::string>(ss));
+      return std::make_unique<Arabica::SAX::InputSource<std::string>>(std::move(ss));
     } // source
 }; // TaggleTest