diff --git a/README.md b/README.md
index 78aeaf8..fee329e 100644
--- a/README.md
+++ b/README.md
@@ -36,7 +36,7 @@ SURVEY {
     num id
     num surveyhero_id
     string name
-    datetime survey_last_updated
+    datetime survey_last_imported
 }
 
 SURVEY_QUESTIONS {
@@ -293,14 +293,16 @@ php artisan surveyhero:map
 
 - Add more default indices to the migration.
 - Support more Surveyhero question types.
-- Support more converted value data types, e.g. double
+- Support more converted value data types, e.g. double.
 - A command to check the `question_mapping` configuration to validate if:
   - there are no double field names
   - there are no double question IDs.
   - there are no double answer IDs.
   - the data format for a question time is ok, i.e. are all fields there and are they the right type.
   - all questions and answers are mapped by doing an API request.
-- A command to create a basic question_mapping configuration based on the [Surveyhero Element API](https://developer.surveyhero.com/api/#element-api)
+- Export survey responses to CSV and Excel
+- Statistics calculator service to quickly query aggregates of responses of questions.
+- ~~A command to create a basic question_mapping configuration based on the [Surveyhero Element API](https://developer.surveyhero.com/api/#element-api)~~
 - A command to create all surveys in the Surveyhero account. 
 
 ## Testing
diff --git a/database/migrations/create_surveyhero_tables.php.stub b/database/migrations/create_surveyhero_tables.php.stub
index 3f50acd..fedc867 100644
--- a/database/migrations/create_surveyhero_tables.php.stub
+++ b/database/migrations/create_surveyhero_tables.php.stub
@@ -13,7 +13,7 @@ class CreateSurveyheroTables extends Migration
             $table->bigInteger('surveyhero_id');
 
             $table->string('name');
-            $table->datetime('survey_last_updated')->nullable();
+            $table->datetime('survey_last_imported')->nullable();
 
             $table->timestamps();
         });
diff --git a/src/Models/Survey.php b/src/Models/Survey.php
index f64696d..c40db4c 100644
--- a/src/Models/Survey.php
+++ b/src/Models/Survey.php
@@ -12,7 +12,7 @@
  * @property int $id
  * @property int $surveyhero_id
  * @property string $name
- * @property Carbon|null $survey_last_updated
+ * @property Carbon|null $survey_last_imported
  * @property Carbon $created_at
  * @property Carbon $updated_at
  * @property Collection $surveyResponses
diff --git a/src/Services/SurveyResponseImportService.php b/src/Services/SurveyResponseImportService.php
index f1d45fa..51e3d4f 100644
--- a/src/Services/SurveyResponseImportService.php
+++ b/src/Services/SurveyResponseImportService.php
@@ -84,7 +84,7 @@ public function importSurveyResponse($responseId, Survey $survey, $surveyQuestio
             //do not import already imported data that is not updated.
             /* @var SurveyResponse $existingResponseRecord */
             $existingResponseRecord = SurveyResponse::where('surveyhero_id', $responseId)->first();
-            if ($existingResponseRecord && ($existingResponseRecord->survey_completed || $existingResponseRecord->survey_last_updated->lte($survey->survey_last_updated))) {
+            if ($existingResponseRecord && ($existingResponseRecord->survey_completed || $existingResponseRecord->survey_last_updated->lte($survey->survey_last_imported))) {
                 return;
             }
 
@@ -120,8 +120,8 @@ public function importSurveyResponse($responseId, Survey $survey, $surveyQuestio
 
             //increase survey last updated timestamp:
             $responseLastUpdatedOn = $this->client->transformAPITimestamp($responseAnswers->last_updated_on);
-            if (is_null($survey->survey_last_updated) || $responseLastUpdatedOn->gt($survey->survey_last_updated)) {
-                $survey->survey_last_updated = $responseLastUpdatedOn;
+            if (is_null($survey->survey_last_imported) || $responseLastUpdatedOn->gt($survey->survey_last_imported)) {
+                $survey->survey_last_imported = $responseLastUpdatedOn;
             }
         }
     }