diff --git a/api/enums/period.py b/api/enums/period.py
index 92c14f42bb..d1125de1cb 100644
--- a/api/enums/period.py
+++ b/api/enums/period.py
@@ -10,7 +10,7 @@ class PeriodEnums(graphene.Enum):
     JUNE = "Jun"
     JULY = "Jul"
     AUGUST = "Aug"
-    SEPTEMBER = "Sept"
+    SEPTEMBER = "Sep"
     OCTOBER = "Oct"
     NOVEMBER = "Nov"
     DECEMBER = "Dec"
diff --git a/api/tests/test_period_enums.py b/api/tests/test_period_enums.py
index 5f954afc4e..6ea0c06da4 100644
--- a/api/tests/test_period_enums.py
+++ b/api/tests/test_period_enums.py
@@ -44,8 +44,8 @@ def test_august_enum():
 
 
 def test_september_enum():
-    assert PeriodEnums.SEPTEMBER == "Sept"
-    assert PeriodEnums.SEPTEMBER == PeriodEnums.get("Sept")
+    assert PeriodEnums.SEPTEMBER == "Sep"
+    assert PeriodEnums.SEPTEMBER == PeriodEnums.get("Sep")
 
 
 def test_october_enum():