update joda-time javadoc url

diff --git a/csharp/src/Google.Protobuf/WellKnownTypes/Timestamp.cs b/csharp/src/Google.Protobuf/WellKnownTypes/Timestamp.cs
index 911f797..9f7ad73 100644
--- a/csharp/src/Google.Protobuf/WellKnownTypes/Timestamp.cs
+++ b/csharp/src/Google.Protobuf/WellKnownTypes/Timestamp.cs

@@ -112,7 +112,7 @@
   /// to this format using [`strftime`](https://docs.python.org/2/library/time.html#time.strftime)
   /// with the time format spec '%Y-%m-%dT%H:%M:%S.%fZ'. Likewise, in Java, one
   /// can use the Joda Time's [`ISODateTimeFormat.dateTime()`](
-  /// http://joda-time.sourceforge.net/apidocs/org/joda/time/format/ISODateTimeFormat.html#dateTime())
+  /// http://www.joda.org/joda-time/apidocs/org/joda/time/format/ISODateTimeFormat.html#dateTime--)
   /// to obtain a formatter capable of generating timestamps in this format.
   /// </summary>
   public sealed partial class Timestamp : pb::IMessage<Timestamp> {

diff --git a/objectivec/google/protobuf/Timestamp.pbobjc.h b/objectivec/google/protobuf/Timestamp.pbobjc.h
index 5d74bd3..0b670c3 100644
--- a/objectivec/google/protobuf/Timestamp.pbobjc.h
+++ b/objectivec/google/protobuf/Timestamp.pbobjc.h

@@ -126,7 +126,7 @@
  * to this format using [`strftime`](https://docs.python.org/2/library/time.html#time.strftime)
  * with the time format spec '%Y-%m-%dT%H:%M:%S.%fZ'. Likewise, in Java, one
  * can use the Joda Time's [`ISODateTimeFormat.dateTime()`](
- * http://joda-time.sourceforge.net/apidocs/org/joda/time/format/ISODateTimeFormat.html#dateTime())
+ * http://www.joda.org/joda-time/apidocs/org/joda/time/format/ISODateTimeFormat.html#dateTime--)
  * to obtain a formatter capable of generating timestamps in this format.
  **/
 @interface GPBTimestamp : GPBMessage

diff --git a/php/src/Google/Protobuf/Timestamp.php b/php/src/Google/Protobuf/Timestamp.php
index d139da9..7da8e95 100644
--- a/php/src/Google/Protobuf/Timestamp.php
+++ b/php/src/Google/Protobuf/Timestamp.php

@@ -64,7 +64,7 @@
  * to this format using [`strftime`](https://docs.python.org/2/library/time.html#time.strftime)
  * with the time format spec '%Y-%m-%dT%H:%M:%S.%fZ'. Likewise, in Java, one
  * can use the Joda Time's [`ISODateTimeFormat.dateTime()`](
- * http://joda-time.sourceforge.net/apidocs/org/joda/time/format/ISODateTimeFormat.html#dateTime())
+ * http://www.joda.org/joda-time/apidocs/org/joda/time/format/ISODateTimeFormat.html#dateTime--)
  * to obtain a formatter capable of generating timestamps in this format.
  *
  * Generated from protobuf message <code>google.protobuf.Timestamp</code>

diff --git a/src/google/protobuf/timestamp.proto b/src/google/protobuf/timestamp.proto
index b7cbd17..06750ab 100644
--- a/src/google/protobuf/timestamp.proto
+++ b/src/google/protobuf/timestamp.proto

@@ -114,7 +114,7 @@
 // to this format using [`strftime`](https://docs.python.org/2/library/time.html#time.strftime)
 // with the time format spec '%Y-%m-%dT%H:%M:%S.%fZ'. Likewise, in Java, one
 // can use the Joda Time's [`ISODateTimeFormat.dateTime()`](
-// http://joda-time.sourceforge.net/apidocs/org/joda/time/format/ISODateTimeFormat.html#dateTime())
+// http://www.joda.org/joda-time/apidocs/org/joda/time/format/ISODateTimeFormat.html#dateTime--)
 // to obtain a formatter capable of generating timestamps in this format.
 //
 //