diff --git a/generate_calendar_dates.php b/generate_calendar_dates.php
index 60b1714..e0805d9 100644
--- a/generate_calendar_dates.php
+++ b/generate_calendar_dates.php
@@ -8,7 +8,7 @@
 /*
 	Date of the Monday of the first academic week of the year. Teaching weeks start on Monday, so this is a convenient base point to start from. This will need to be updated annually.
 */
-$first_monday = new DateTime( "2018-01-01" );
+$first_monday = new DateTime( "2018-12-31" );
 
 
 /*
@@ -46,8 +46,8 @@
         'last_week'   => 22,
         'break_weeks' => array(
             array(
-                'break_starts' => 14,
-                'break_ends'  => 14,
+                'break_starts' => 17,
+                'break_ends'  => 17,
             ),
         ),
     ),
@@ -66,8 +66,8 @@
         'last_week'   => 41,
         'break_weeks' => array(
             array(
-                'break_starts' => 14,
-                'break_ends'  => 14,
+                'break_starts' => 17,
+                'break_ends'  => 17,
             ),
             array(
                 'break_starts' => 23,