diff --git a/Makefile b/Makefile
index 765b1f6..d58ec56 100644
--- a/Makefile
+++ b/Makefile
@@ -10,7 +10,7 @@ stop:
 	docker-compose -f ./docker/docker-compose.yml down
 
 init:
-    pipenv --three && pipenv install --dev
+	pipenv	--three	&&	pipenv	install	--dev
 
 env:
 	pipenv shell
diff --git a/data_scraper/notifications.py b/data_scraper/notifications.py
index 3e9d3c2..16a380e 100644
--- a/data_scraper/notifications.py
+++ b/data_scraper/notifications.py
@@ -62,7 +62,7 @@ def send_report(done, failed, scraper, op="scrape"):
                                                     _symbol_str(len(failed)),
                                                     ", ".join(failed))
     else:
-        msg_fail = "No symbols fail to scrape! 🤩"
+        msg_fail = "No symbols failed to scrape! 🤩"
 
     msg = msg_success + '\n' + msg_fail
     slack_notification(msg, scraper, status=Status.Warning)
diff --git a/data_scraper/validation.py b/data_scraper/validation.py
index 6bfc92f..06b7b37 100644
--- a/data_scraper/validation.py
+++ b/data_scraper/validation.py
@@ -9,11 +9,13 @@ from .notifications import slack_notification
 
 logger = logging.getLogger(__name__)
 
+
 def file_hash_matches_data(file_path, data):
     file_hash = file_md5(file_path)
     data_md5 = hashlib.md5(data.encode()).hexdigest()
     return file_hash == data_md5
 
+
 def file_md5(file, chunk_size=4096):
     md5 = hashlib.md5()
     with open(file, "rb") as f:
@@ -22,6 +24,7 @@ def file_md5(file, chunk_size=4096):
 
     return md5.hexdigest()
 
+
 def validate_dates_in_month(symbol, date_range):
     """Compares `date_range` (month) with NYSE trading calendar.
     Returns `True` if there are no missing days.
@@ -43,6 +46,7 @@ def validate_dates_in_month(symbol, date_range):
                      missing_days)
     return missing_days.empty
 
+
 def validate_historical_dates(symbol, date_range):
     """Compares `date_range` (any time range) with trading calendar.
     Returns `True` if there are no missing days.
@@ -63,9 +67,12 @@ def validate_historical_dates(symbol, date_range):
 
     return missing_days.empty
 
+
 def validate_columns(expected, received):
     """Verify that the `received` columns scraped are equal to `expected`"""
-    valid = all(expected == received)
+    expected = sorted(expected)
+    received = sorted(received)
+    valid = expected == received
     if not valid:
         expected_cols = ", ".join(expected)
         received_cols = ", ".join(received)
@@ -76,6 +83,7 @@ def validate_columns(expected, received):
         slack_notification(msg, __name__)
     return valid
 
+
 def validate_aggregate_file(aggregate_file, daily_files):
     """Compares `aggregate_file` with the data from `daily_files`."""
     aggregate_df = pd.read_csv(aggregate_file)