diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index bbf217f21..5f3ff1776 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,3 +1,3 @@
 [toolchain]
-channel = "1.81.0"
+channel = "1.82.0"
 profile = "default"
diff --git a/upstairs/src/dummy_downstairs_tests.rs b/upstairs/src/dummy_downstairs_tests.rs
index 85e53c0bd..e9e277a31 100644
--- a/upstairs/src/dummy_downstairs_tests.rs
+++ b/upstairs/src/dummy_downstairs_tests.rs
@@ -1596,7 +1596,7 @@ async fn test_byte_fault_condition_offline() {
         h.await.unwrap();
 
         let ds = harness.guest.downstairs_state().await.unwrap();
-        if (i as usize + 1) * WRITE_SIZE < IO_OUTSTANDING_MAX_BYTES as usize {
+        if (i + 1) * WRITE_SIZE < IO_OUTSTANDING_MAX_BYTES as usize {
             assert_eq!(ds[ClientId::new(0)], DsState::Offline);
             assert_eq!(ds[ClientId::new(1)], DsState::Active);
             assert_eq!(ds[ClientId::new(2)], DsState::Active);