diff --git a/src/main/java/com/sun/syndication/feed/impl/CopyFromHelper.java b/src/main/java/com/sun/syndication/feed/impl/CopyFromHelper.java
index 7e95797..76136be 100644
--- a/src/main/java/com/sun/syndication/feed/impl/CopyFromHelper.java
+++ b/src/main/java/com/sun/syndication/feed/impl/CopyFromHelper.java
@@ -25,6 +25,7 @@ import java.util.Date;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Iterator;
+import java.util.LinkedHashSet;
 import java.util.Map;
 import java.util.Map.Entry;
 import java.util.Set;
@@ -148,7 +149,7 @@ public class CopyFromHelper {
         // expecting SETs or LISTs only, going default implementation of them
         final Collection<T> newColl;
         if (collection instanceof Set) {
-            newColl = new HashSet<T>();
+            newColl = new LinkedHashSet<T>();
         } else {
             newColl = new ArrayList<T>();
         }
diff --git a/src/main/java/com/sun/syndication/feed/synd/impl/ConverterForRSS091Userland.java b/src/main/java/com/sun/syndication/feed/synd/impl/ConverterForRSS091Userland.java
index 31d8ad4..4ffa9fe 100644
--- a/src/main/java/com/sun/syndication/feed/synd/impl/ConverterForRSS091Userland.java
+++ b/src/main/java/com/sun/syndication/feed/synd/impl/ConverterForRSS091Userland.java
@@ -18,7 +18,7 @@ package com.sun.syndication.feed.synd.impl;
 
 import java.util.ArrayList;
 import java.util.Date;
-import java.util.HashSet;
+import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Set;
 
@@ -72,7 +72,7 @@ public class ConverterForRSS091Userland extends ConverterForRSS090 {
             final List<String> creators = ((DCModule) syndFeed.getModule(DCModule.URI)).getCreators();
 
             if (!creators.contains(author)) {
-                final Set<String> s = new HashSet<String>(); // using a set to
+                final Set<String> s = new LinkedHashSet<String>(); // using a set to
                                                              // remove
                 // duplicates
                 s.addAll(creators); // DC creators
diff --git a/src/main/java/com/sun/syndication/feed/synd/impl/ConverterForRSS094.java b/src/main/java/com/sun/syndication/feed/synd/impl/ConverterForRSS094.java
index 69ceb1a..9495e57 100644
--- a/src/main/java/com/sun/syndication/feed/synd/impl/ConverterForRSS094.java
+++ b/src/main/java/com/sun/syndication/feed/synd/impl/ConverterForRSS094.java
@@ -17,7 +17,7 @@
 package com.sun.syndication.feed.synd.impl;
 
 import java.util.ArrayList;
-import java.util.HashSet;
+import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Set;
 
@@ -52,7 +52,7 @@ public class ConverterForRSS094 extends ConverterForRSS093 {
         super.copyInto(channel, syndFeed);
         final List<Category> cats = channel.getCategories(); // c
         if (cats.size() > 0) {
-            final Set<SyndCategory> s = new HashSet<SyndCategory>(); // using a
+            final Set<SyndCategory> s = new LinkedHashSet<SyndCategory>(); // using a
                                                                      // set to
             // remove
             // duplicates
@@ -73,7 +73,7 @@ public class ConverterForRSS094 extends ConverterForRSS093 {
         if (author != null) {
             final List<String> creators = ((DCModule) syndEntry.getModule(DCModule.URI)).getCreators();
             if (!creators.contains(author)) {
-                final Set<String> s = new HashSet<String>(); // using a set to
+                final Set<String> s = new LinkedHashSet<String>(); // using a set to
                                                              // remove
                 // duplicates
                 s.addAll(creators); // DC creators