diff --git a/app/data/__init__.py b/app/data/__init__.py
index 60a75dac..2f32d280 100644
--- a/app/data/__init__.py
+++ b/app/data/__init__.py
@@ -2,12 +2,13 @@
 from ..services.location.csbs import CSBSLocationService
 from ..services.location.jhu import JhuLocationService
 from ..services.location.nyt import NYTLocationService
+from ..utils.source_enum import SourceEnum
 
 # Mapping of services to data-sources.
 DATA_SOURCES = {
-    "jhu": JhuLocationService(),
-    "csbs": CSBSLocationService(),
-    "nyt": NYTLocationService(),
+    SourceEnum.JHU: JhuLocationService(),
+    SourceEnum.CSBS: CSBSLocationService(),
+    SourceEnum.NYT: NYTLocationService(),
 }
 
 
diff --git a/app/routers/v2.py b/app/routers/v2.py
index 31eb408c..b424aaba 100644
--- a/app/routers/v2.py
+++ b/app/routers/v2.py
@@ -5,7 +5,7 @@
 
 from ..data import DATA_SOURCES
 from ..models import LatestResponse, LocationResponse, LocationsResponse
-
+from ..utils.source_enum import SourceEnum
 V2 = APIRouter()
 
 
@@ -14,14 +14,10 @@ class Sources(str, enum.Enum):
     A source available for retrieving data.
     """
 
-    JHU = "jhu"
-    CSBS = "csbs"
-    NYT = "nyt"
-
 
 @V2.get("/latest", response_model=LatestResponse)
 async def get_latest(
-    request: Request, source: Sources = Sources.JHU
+    request: Request, source: Sources = SourceEnum.JHU
 ):  # pylint: disable=unused-argument
     """
     Getting latest amount of total confirmed cases, deaths, and recoveries.
@@ -93,7 +89,7 @@ async def get_locations(
 # pylint: disable=invalid-name
 @V2.get("/locations/{id}", response_model=LocationResponse)
 async def get_location_by_id(
-    request: Request, id: int, source: Sources = Sources.JHU, timelines: bool = True
+    request: Request, id: int, source: Sources = SourceEnum.JHU, timelines: bool = True
 ):
     """
     Getting specific location by id.
diff --git a/app/utils/source_enum.py b/app/utils/source_enum.py
new file mode 100644
index 00000000..ad0a6e78
--- /dev/null
+++ b/app/utils/source_enum.py
@@ -0,0 +1,4 @@
+class SourceEnum(Enum):
+    JHU = "jhu"
+    CSBS = "csbs"
+    NYT = "nyt"