diff --git a/client/src/api/schema/schema.ts b/client/src/api/schema/schema.ts
index b8ec4fbdce1e..44f5457df6bf 100644
--- a/client/src/api/schema/schema.ts
+++ b/client/src/api/schema/schema.ts
@@ -12107,18 +12107,17 @@ export interface components {
              * Label
              * @description Label of the input.
              */
-            label: string;
+            label: string | null;
             /**
              * UUID
-             * Format: uuid4
              * @description Universal unique identifier of the input.
              */
-            uuid: string;
+            uuid: string | null;
             /**
              * Value
              * @description TODO
              */
-            value: string;
+            value: Record<string, never> | null;
         };
         /** WorkflowInvocationCollectionView */
         WorkflowInvocationCollectionView: {
diff --git a/lib/galaxy/schema/schema.py b/lib/galaxy/schema/schema.py
index 9391c03efd33..1b8c0bd37a41 100644
--- a/lib/galaxy/schema/schema.py
+++ b/lib/galaxy/schema/schema.py
@@ -2154,17 +2154,17 @@ class StoredWorkflowSummary(Model, WithModelClass):
 
 
 class WorkflowInput(Model):
-    label: str = Field(
+    label: Optional[str] = Field(
         ...,
         title="Label",
         description="Label of the input.",
     )
-    value: str = Field(
+    value: Optional[Any] = Field(
         ...,
         title="Value",
         description="TODO",
     )
-    uuid: UUID4 = Field(
+    uuid: Optional[UUID4] = Field(
         ...,
         title="UUID",
         description="Universal unique identifier of the input.",