--- a/COLLADABaseUtils/include/COLLADABUhash_map.h
+++ b/COLLADABaseUtils/include/COLLADABUhash_map.h
@@ -50,14 +50,14 @@
             #define COLLADABU_HASH_FUN hash
         #endif
     #elif defined(__MINGW32__) || defined(__MINGW64__)
-        #include <tr1/unordered_map>
-        #include <tr1/unordered_set>
+        #include <unordered_map>
+        #include <unordered_set>
 
-        #define COLLADABU_HASH_MAP std::tr1::unordered_map
-        #define COLLADABU_HASH_MULTIMAP std::tr1::unordered_multimap
-        #define COLLADABU_HASH_SET std::tr1::unordered_set
-        #define COLLADABU_HASH_NAMESPACE_OPEN std { namespace tr1
-        #define COLLADABU_HASH_NAMESPACE_CLOSE }
+        #define COLLADABU_HASH_MAP std::unordered_map
+        #define COLLADABU_HASH_MULTIMAP std::unordered_multimap
+        #define COLLADABU_HASH_SET std::unordered_set
+        #define COLLADABU_HASH_NAMESPACE_OPEN std
+        #define COLLADABU_HASH_NAMESPACE_CLOSE
         #define COLLADABU_HASH_FUN hash
     #endif
 #elif (defined(__APPLE__) || defined(__FreeBSD__)) && defined(_LIBCPP_VERSION)
