diff --git a/microsoft-azure-api/src/main/java/com/microsoft/windowsazure/services/serviceBus/ServiceBusContract.java b/microsoft-azure-api/src/main/java/com/microsoft/windowsazure/services/serviceBus/ServiceBusContract.java
index 2f638cc893759..edc879ea7b88c 100644
--- a/microsoft-azure-api/src/main/java/com/microsoft/windowsazure/services/serviceBus/ServiceBusContract.java
+++ b/microsoft-azure-api/src/main/java/com/microsoft/windowsazure/services/serviceBus/ServiceBusContract.java
@@ -373,19 +373,38 @@ CreateSubscriptionResult createSubscription(String topicPath, SubscriptionInfo s
     ListSubscriptionsResult listSubscriptions(String topicPath) throws ServiceException;
 
     /**
-     * List subscriptions.
+     * Returns a list of subscriptions.
      * 
      * @param topicPath
-     *            the topic path
+     *            A <code>String</code> object that represents the name of the topic for the subscriptions to retrieve.
+     * 
      * @param options
-     *            the options
-     * @return the list subscriptions result
+     *            A <code>ListSubscriptionsOptions</code> object that represents the options to list subscriptions.
+     * 
+     * @return A <code>ListSubscriptionsResult</code> object that represents the result.
+     * 
      * @throws ServiceException
      *             the service exception
      */
     ListSubscriptionsResult listSubscriptions(String topicPath, ListSubscriptionsOptions options)
             throws ServiceException;
 
+    /**
+     * Updates a subscription.
+     * 
+     * @param topicName
+     *            A <code>String</code> option which represents the name of the topic.
+     * 
+     * @param subscriptionInfo
+     *            A <code>SubscriptionInfo</code> option which represents the information of the subscription.
+     * 
+     * @return A <code>SubscriptionInfo</code> object that represents the result.
+     * 
+     * @exception ServiceException
+     *                If a service exception is encountered.
+     */
+    SubscriptionInfo updateSubscription(String topicName, SubscriptionInfo subscriptionInfo) throws ServiceException;
+
     /**
      * Creates a rule.
      * 
@@ -448,15 +467,16 @@ ListSubscriptionsResult listSubscriptions(String topicPath, ListSubscriptionsOpt
     ListRulesResult listRules(String topicPath, String subscriptionName) throws ServiceException;
 
     /**
-     * List rules.
+     * Returns a list of rules.
      * 
      * @param topicPath
-     *            the topic path
+     *            A <code>String</code> object that represents the name of the topic for the subscription.
      * @param subscriptionName
-     *            the name of the subscription
+     *            A <code>String</code> object that represents the name of the subscription whose rules are being
+     *            retrieved.
      * @param options
-     *            the options
-     * @return the list rules result
+     *            A <code>ListRulesOptions</code> object that represents the options to retrieve rules.
+     * 
      * @throws ServiceException
      *             If a service exception is encountered.
      */
diff --git a/microsoft-azure-api/src/main/java/com/microsoft/windowsazure/services/serviceBus/implementation/ServiceBusExceptionProcessor.java b/microsoft-azure-api/src/main/java/com/microsoft/windowsazure/services/serviceBus/implementation/ServiceBusExceptionProcessor.java
index 5620585bd17ab..d0a9dc8e9610c 100644
--- a/microsoft-azure-api/src/main/java/com/microsoft/windowsazure/services/serviceBus/implementation/ServiceBusExceptionProcessor.java
+++ b/microsoft-azure-api/src/main/java/com/microsoft/windowsazure/services/serviceBus/implementation/ServiceBusExceptionProcessor.java
@@ -369,6 +369,20 @@ public ListSubscriptionsResult listSubscriptions(String topicPath) throws Servic
         }
     }
 
+    @Override
+    public SubscriptionInfo updateSubscription(String topicName, SubscriptionInfo subscriptionInfo)
+            throws ServiceException {
+        try {
+            return next.updateSubscription(topicName, subscriptionInfo);
+        }
+        catch (UniformInterfaceException e) {
+            throw processCatch(new ServiceException(e));
+        }
+        catch (ClientHandlerException e) {
+            throw processCatch(new ServiceException(e));
+        }
+    }
+
     @Override
     public CreateRuleResult createRule(String topicPath, String subscriptionName, RuleInfo rule)
             throws ServiceException {
diff --git a/microsoft-azure-api/src/main/java/com/microsoft/windowsazure/services/serviceBus/implementation/ServiceBusRestProxy.java b/microsoft-azure-api/src/main/java/com/microsoft/windowsazure/services/serviceBus/implementation/ServiceBusRestProxy.java
index a5f2d9c019238..e9ee204c9dba1 100644
--- a/microsoft-azure-api/src/main/java/com/microsoft/windowsazure/services/serviceBus/implementation/ServiceBusRestProxy.java
+++ b/microsoft-azure-api/src/main/java/com/microsoft/windowsazure/services/serviceBus/implementation/ServiceBusRestProxy.java
@@ -368,6 +368,14 @@ public ListSubscriptionsResult listSubscriptions(String topicPath, ListSubscript
         return result;
     }
 
+    @Override
+    public SubscriptionInfo updateSubscription(String topicName, SubscriptionInfo subscriptionInfo)
+            throws ServiceException {
+        return getResource().path(topicName).path("subscriptions").path(subscriptionInfo.getName())
+                .type("application/atom+xml;type=entry;charset=utf-8").header("If-Match", "*")
+                .put(SubscriptionInfo.class, subscriptionInfo);
+    }
+
     @Override
     public CreateRuleResult createRule(String topicPath, String subscriptionName, RuleInfo rule) {
         return new CreateRuleResult(getResource().path(topicPath).path("subscriptions").path(subscriptionName)
diff --git a/microsoft-azure-api/src/test/java/com/microsoft/windowsazure/services/serviceBus/ServiceBusIntegrationTest.java b/microsoft-azure-api/src/test/java/com/microsoft/windowsazure/services/serviceBus/ServiceBusIntegrationTest.java
index 6259b2d55871e..ba47ddec891f0 100644
--- a/microsoft-azure-api/src/test/java/com/microsoft/windowsazure/services/serviceBus/ServiceBusIntegrationTest.java
+++ b/microsoft-azure-api/src/test/java/com/microsoft/windowsazure/services/serviceBus/ServiceBusIntegrationTest.java
@@ -435,6 +435,23 @@ public void subscriptionWillReceiveMessage() throws Exception {
         assertEquals("text/html", message.getContentType());
     }
 
+    @Test
+    public void subscriptionCanBeUpdated() throws Exception {
+        // Arrange 
+        String topicName = "testSubscriptionCanBeUpdated";
+        service.createTopic(new TopicInfo(topicName));
+        SubscriptionInfo originalSubscription = service.createSubscription(topicName, new SubscriptionInfo("sub"))
+                .getValue();
+        Integer expectedMaxDeliveryCount = 1024;
+
+        // Act
+        SubscriptionInfo updatedSubscription = service.updateSubscription(topicName,
+                originalSubscription.setMaxDeliveryCount(expectedMaxDeliveryCount));
+
+        // Assert
+        assertEquals(expectedMaxDeliveryCount, updatedSubscription.getMaxDeliveryCount());
+    }
+
     @Test
     public void rulesCanBeCreatedOnSubscriptions() throws Exception {
         // Arrange