diff --git a/src/dispatch/auth/models.py b/src/dispatch/auth/models.py
index 68092be34840..8249cb76fd32 100644
--- a/src/dispatch/auth/models.py
+++ b/src/dispatch/auth/models.py
@@ -265,8 +265,8 @@ class UserCreate(DispatchBase):
 
     email: EmailStr
     password: str | None = None
-    projects: list[UserProject] | None
-    organizations: list[UserOrganization] | None
+    projects: list[UserProject] | None = None
+    organizations: list[UserOrganization] | None = None
     role: str | None = None
 
     @field_validator("password", mode="before")
diff --git a/src/dispatch/data/alert/models.py b/src/dispatch/data/alert/models.py
index 19a98ac1dc62..5f01d8a1c876 100644
--- a/src/dispatch/data/alert/models.py
+++ b/src/dispatch/data/alert/models.py
@@ -26,7 +26,7 @@ class AlertBase(DispatchBase):
 
 
 class AlertCreate(AlertBase):
-    id: PrimaryKey | None
+    id: PrimaryKey | None = None
 
 
 class AlertUpdate(AlertBase):
diff --git a/src/dispatch/email_templates/models.py b/src/dispatch/email_templates/models.py
index d5d75217a5ae..05fe3a1c232c 100644
--- a/src/dispatch/email_templates/models.py
+++ b/src/dispatch/email_templates/models.py
@@ -27,7 +27,7 @@ class EmailTemplatesBase(DispatchBase):
 
 
 class EmailTemplatesCreate(EmailTemplatesBase):
-    project: ProjectRead | None
+    project: ProjectRead | None = None
 
 
 class EmailTemplatesUpdate(EmailTemplatesBase):
diff --git a/src/dispatch/entity/models.py b/src/dispatch/entity/models.py
index 39cac0b05e05..92e474e36248 100644
--- a/src/dispatch/entity/models.py
+++ b/src/dispatch/entity/models.py
@@ -57,7 +57,7 @@ class EntityCreate(EntityBase):
     def __hash__(self):
         return hash((self.id, self.value))
 
-    id: PrimaryKey | None
+    id: PrimaryKey | None = None
     entity_type: EntityTypeCreate
     project: ProjectRead
 
@@ -79,7 +79,7 @@ class EntityReadMinimal(DispatchBase):
     source: str | None = None
     value: str | None = None
     description: str | None = None
-    entity_type: EntityTypeReadMinimal | None
+    entity_type: EntityTypeReadMinimal | None = None
 
 
 class EntityPagination(Pagination):
diff --git a/src/dispatch/entity_type/models.py b/src/dispatch/entity_type/models.py
index 925db27f40a9..8a1636e10696 100644
--- a/src/dispatch/entity_type/models.py
+++ b/src/dispatch/entity_type/models.py
@@ -64,7 +64,7 @@ class EntityTypeBase(DispatchBase):
 
 
 class EntityTypeCreate(EntityTypeBase):
-    id: PrimaryKey | None
+    id: PrimaryKey | None = None
     project: ProjectRead
 
 
diff --git a/src/dispatch/notification/models.py b/src/dispatch/notification/models.py
index 5717ce79ef20..5d7088028ac2 100644
--- a/src/dispatch/notification/models.py
+++ b/src/dispatch/notification/models.py
@@ -67,7 +67,7 @@ class NotificationBase(EvergreenBase):
 
 
 class NotificationCreate(NotificationBase):
-    filters: list[SearchFilterRead | None]
+    filters: list[SearchFilterRead | None] = None
     project: ProjectRead
 
 
diff --git a/src/dispatch/plugin/models.py b/src/dispatch/plugin/models.py
index 3008ab5e54f8..599decc4b55b 100644
--- a/src/dispatch/plugin/models.py
+++ b/src/dispatch/plugin/models.py
@@ -209,8 +209,8 @@ class PluginInstanceReadMinimal(PluginBase):
 
 
 class PluginInstanceCreate(PluginBase):
-    enabled: bool | None
-    configuration: dict | None
+    enabled: bool | None = None
+    configuration: dict | None = None
     plugin: PluginRead
     project: ProjectRead