Error when piping two effects together

declare const a: Effect<unknown, unknown, void>
declare const b: Effect<never, unknown, void>
pipe(
  a,
  zipRight(b)

Type 'Effect<unknown, unknown, void>' is not assignable to type 'Effect<never, unknown, void>' with 'exactOptionalPropertyTypes: true'. Consider adding 'undefined' to the types of the target's properties.
  Type 'unknown' is not assignable to type 'never'.