diff --git a/backend/cases/serializers.py b/backend/cases/serializers.py
index cc959e7bf..e7297a4a7 100644
--- a/backend/cases/serializers.py
+++ b/backend/cases/serializers.py
@@ -167,7 +167,6 @@ class Meta:
             "presetset",  # made writable in to_internal_value
             "state",
             "caseqc",
-            "pedigree",
             "pedigree_obj",
         )
 
diff --git a/backend/varfish/tests/drf_openapi_schema/varfish_api_schema.yaml b/backend/varfish/tests/drf_openapi_schema/varfish_api_schema.yaml
index 99bc953cc..fbb71be14 100644
--- a/backend/varfish/tests/drf_openapi_schema/varfish_api_schema.yaml
+++ b/backend/varfish/tests/drf_openapi_schema/varfish_api_schema.yaml
@@ -6072,8 +6072,7 @@ components:
         index:
           type: string
           maxLength: 512
-        pedigree:
-          readOnly: true
+        pedigree: {}
         notes:
           type: string
           nullable: true
@@ -6153,6 +6152,7 @@ components:
           type: string
           minLength: 1
           maxLength: 512
+        pedigree: {}
         notes:
           type: string
           nullable: true
@@ -6172,6 +6172,7 @@ components:
       required:
       - index
       - name
+      - pedigree
     CaseSerializerNgStateEnum:
       enum:
       - importing
@@ -8091,6 +8092,7 @@ components:
           type: string
           minLength: 1
           maxLength: 512
+        pedigree: {}
         notes:
           type: string
           nullable: true