diff --git a/program/models.py b/program/models.py
index 3fe323b65701b17172dfe451d0113ec77b4ef913..d6fada877152b8ad6f5a8cdd51bf5c00f9e94f5f 100644
--- a/program/models.py
+++ b/program/models.py
@@ -92,8 +92,8 @@ class ModelWithCreatedUpdatedFields(models.Model):
 
     created_at = models.DateTimeField(auto_now_add=True)
     created_by = models.CharField(max_length=150)
-    updated_at = models.DateTimeField(auto_now=True)
-    updated_by = models.CharField(max_length=150)
+    updated_at = models.DateTimeField(auto_now=True, blank=True, null=True)
+    updated_by = models.CharField(blank=True, max_length=150, null=True)
 
     class Meta:
         abstract = True