diff --git a/app/objects/c_source.py b/app/objects/c_source.py
index f8dd33624..f0df44a0e 100644
--- a/app/objects/c_source.py
+++ b/app/objects/c_source.py
@@ -60,17 +60,15 @@ def _fix_loaded_object_origins(input_data):
         :param input_data: A 'source' dictionary
         :return: input_data with updated facts/relationships (patched in place)
         """
-        if 'facts' in input_data:
-            for y in input_data['facts']:
-                y['origin_type'] = OriginType.IMPORTED.name
-                y['source'] = input_data['id']
-        if 'relationships' in input_data:
-            for y in input_data['relationships']:
-                y['source']['origin_type'] = OriginType.IMPORTED.name
-                y['source']['source'] = input_data['id']
-                if 'target' in y:
-                    y['target']['origin_type'] = OriginType.IMPORTED.name
-                    y['target']['source'] = input_data['id']
+        for y in input_data.get('facts', []):
+            y['origin_type'] = OriginType.IMPORTED.name
+            y['source'] = input_data['id']
+        for y in input_data.get('relationships', []):
+            y['source']['origin_type'] = OriginType.IMPORTED.name
+            y['source']['source'] = input_data['id']
+            if y.get('target'):
+                y['target']['origin_type'] = OriginType.IMPORTED.name
+                y['target']['source'] = input_data['id']
 
 
 class Source(FirstClassObjectInterface, BaseObject):
diff --git a/requirements.txt b/requirements.txt
index 2b42ee9a5..16a9577d4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ jinja2==3.1.2
 pyyaml==6.0.1
 cryptography==41.0.3
 websockets==11.0.3
-Sphinx==7.2.5
+Sphinx==7.1.2
 sphinx_rtd_theme==1.3.0
 myst-parser==2.0.0
 marshmallow==3.20.1