diff --git a/module/program/model.php b/module/program/model.php
index be9d29f6b6..f45f36eadd 100644
--- a/module/program/model.php
+++ b/module/program/model.php
@@ -1389,7 +1389,35 @@ class programModel extends model
                 ->exec();
         }
 
-        /* 5. Update projectStatsTime in config. */
+        /* 5. Update programStatsTime. */
+        $projectList = $this->dao->select('id,progress,path')->from(TABLE_PROJECT)
+            ->where('type')->eq('project')
+            ->andWhere('parent')->ne(0)
+            ->fetchAll('id');
+        $programProgress = array();
+        foreach($projectList as $projectID => $project)
+        {
+            $path = explode(',', trim($project->path, ','));
+
+            foreach($path as $programID)
+            {
+                if($programID == $projectID) continue;
+                $programProgress[$programID][] = $project->progress;
+            }
+        }
+
+        foreach($programProgress as $programID => $progress)
+        {
+            $count = count($progress);
+            $sum = array_sum($progress);
+            $average = round($sum / $count, 2);
+            $this->dao->update(TABLE_PROJECT)
+                ->set('progress')->eq($average)
+                ->where('id')->eq($programID)
+                ->exec();
+        }
+
+        /* 6. Update projectStatsTime in config. */
         $this->loadModel('setting')->setItem('system.common.global.projectStatsTime', $now);
         $this->app->config->global->projectStatsTime = $now;
     }