diff --git a/Resources/config/validation.xml b/Resources/config/validation.xml
index 6ec0064e..58852ea6 100644
--- a/Resources/config/validation.xml
+++ b/Resources/config/validation.xml
@@ -23,13 +23,11 @@
             <constraint name="NotBlank">
                 <option name="message">Please enter a subject</option>
             </constraint>
-            <constraint name="MinLength">
-                <option name="limit">2</option>
-                <option name="message">The subject is too short</option>
-            </constraint>
-            <constraint name="MaxLength">
-                <option name="limit">255</option>
-                <option name="message">The subject is too long</option>
+            <constraint name="Length">
+                <option name="min">2</option>
+                <option name="max">255</option>
+                <option name="minMessage">The subject is too short|The subject is too short</option>
+                <option name="maxMessage">The subject is too long|The subject is too long</option>
             </constraint>
         </property>
 
@@ -37,9 +35,9 @@
             <constraint name="NotBlank">
                 <option name="message">Please enter a body</option>
             </constraint>
-            <constraint name="MinLength">
-                <option name="limit">2</option>
-                <option name="message">The body is too short</option>
+            <constraint name="Length">
+                <option name="min">2</option>
+                <option name="minMessage">The body is too short|The body is too short</option>
             </constraint>
         </property>
 
@@ -53,9 +51,9 @@
             <constraint name="NotBlank">
                 <option name="message">Please enter a body</option>
             </constraint>
-            <constraint name="MinLength">
-                <option name="limit">2</option>
-                <option name="message">The body is too short</option>
+            <constraint name="Length">
+                <option name="min">2</option>
+                <option name="minMessage">The body is too short|The body is too short</option>
             </constraint>
         </property>