diff --git a/cg/models/scout/scout_load_config.py b/cg/models/scout/scout_load_config.py
index 055c924388..b1eca3de37 100644
--- a/cg/models/scout/scout_load_config.py
+++ b/cg/models/scout/scout_load_config.py
@@ -95,8 +95,8 @@ class ScoutLoadConfig(BaseModel):
     gene_panels: list[str] | None = None
     default_gene_panels: list[str] = []
     cohorts: list[str] | None = None
-    human_genome_build: str = None
-    rna_genome_build: str = None
+    human_genome_build: str | None = None
+    rna_genome_build: str | None = None
     rank_model_version: str | None = None
     rank_score_threshold: int = None
     sv_rank_model_version: str | None = None