diff --git a/src/main/java/com/rometools/fetcher/FetcherEvent.java b/src/main/java/com/rometools/fetcher/FetcherEvent.java
index ec1f461..f12b700 100644
--- a/src/main/java/com/rometools/fetcher/FetcherEvent.java
+++ b/src/main/java/com/rometools/fetcher/FetcherEvent.java
@@ -12,7 +12,7 @@ import com.sun.syndication.feed.synd.SyndFeed;
  */
 public class FetcherEvent extends EventObject {
 
-    private static final long serialVersionUID = 3985600601904140103L;
+    private static final long serialVersionUID = 1L;
 
     public static final String EVENT_TYPE_FEED_POLLED = "FEED_POLLED";
     public static final String EVENT_TYPE_FEED_RETRIEVED = "FEED_RETRIEVED";
diff --git a/src/main/java/com/rometools/fetcher/FetcherException.java b/src/main/java/com/rometools/fetcher/FetcherException.java
index eb58a6e..1d1659e 100644
--- a/src/main/java/com/rometools/fetcher/FetcherException.java
+++ b/src/main/java/com/rometools/fetcher/FetcherException.java
@@ -21,7 +21,7 @@ package com.rometools.fetcher;
  * 
  */
 public class FetcherException extends Exception {
-    private static final long serialVersionUID = -7479645796948092380L;
+    private static final long serialVersionUID = 1L;
 
     int responseCode;
 
diff --git a/src/main/java/com/rometools/fetcher/impl/HashMapFeedInfoCache.java b/src/main/java/com/rometools/fetcher/impl/HashMapFeedInfoCache.java
index 49a22cb..c51d231 100644
--- a/src/main/java/com/rometools/fetcher/impl/HashMapFeedInfoCache.java
+++ b/src/main/java/com/rometools/fetcher/impl/HashMapFeedInfoCache.java
@@ -36,7 +36,7 @@ import java.util.Map;
  * 
  */
 public class HashMapFeedInfoCache implements FeedFetcherCache, Serializable {
-    private static final long serialVersionUID = -1594665619950916222L;
+    private static final long serialVersionUID = 1L;
 
     static HashMapFeedInfoCache _instance;
 
diff --git a/src/main/java/com/rometools/fetcher/impl/LinkedHashMapFeedInfoCache.java b/src/main/java/com/rometools/fetcher/impl/LinkedHashMapFeedInfoCache.java
index 3e2e5f1..03f6443 100644
--- a/src/main/java/com/rometools/fetcher/impl/LinkedHashMapFeedInfoCache.java
+++ b/src/main/java/com/rometools/fetcher/impl/LinkedHashMapFeedInfoCache.java
@@ -21,7 +21,7 @@ public class LinkedHashMapFeedInfoCache extends HashMapFeedInfoCache {
 
     private final class CacheImpl extends LinkedHashMap<String, SyndFeedInfo> {
 
-        private static final long serialVersionUID = -6977191330127794920L;
+        private static final long serialVersionUID = 1L;
 
         public CacheImpl() {
             super(16, 0.75F, true);
@@ -35,7 +35,7 @@ public class LinkedHashMapFeedInfoCache extends HashMapFeedInfoCache {
     }
 
     private static final int DEFAULT_MAX_ENTRIES = 20;
-    private static final long serialVersionUID = 1694228973357997417L;
+    private static final long serialVersionUID = 1L;
     private static final LinkedHashMapFeedInfoCache _instance = new LinkedHashMapFeedInfoCache();
 
     private int maxEntries = DEFAULT_MAX_ENTRIES;
diff --git a/src/main/java/com/rometools/fetcher/impl/SyndFeedInfo.java b/src/main/java/com/rometools/fetcher/impl/SyndFeedInfo.java
index 1c45c86..f36ae91 100644
--- a/src/main/java/com/rometools/fetcher/impl/SyndFeedInfo.java
+++ b/src/main/java/com/rometools/fetcher/impl/SyndFeedInfo.java
@@ -34,7 +34,7 @@ import com.sun.syndication.feed.synd.SyndFeed;
  * @author Nick Lothian
  */
 public class SyndFeedInfo implements Cloneable, Serializable {
-    private static final long serialVersionUID = -1874786860901426015L;
+    private static final long serialVersionUID = 1L;
 
     private final ObjectBean _objBean;
     private String id;