diff --git a/src/bin/qrust/config.rs b/src/bin/qrust/config.rs
index e21dd66..ae95c36 100644
--- a/src/bin/qrust/config.rs
+++ b/src/bin/qrust/config.rs
@@ -65,8 +65,8 @@ impl Config {
                 .build()
                 .unwrap(),
             alpaca_rate_limiter: RateLimiter::direct(Quota::per_minute(match *ALPACA_SOURCE {
-                Source::Iex => unsafe { NonZeroU32::new_unchecked(200) },
-                Source::Sip => unsafe { NonZeroU32::new_unchecked(10_000) },
+                Source::Iex => NonZeroU32::new(200).unwrap(),
+                Source::Sip => NonZeroU32::new(10_000).unwrap(),
                 Source::Otc => unimplemented!("OTC rate limit not implemented."),
             })),
             clickhouse_client: clickhouse::Client::default()