diff --git a/crates/pinakes-core/src/plugin/pipeline.rs b/crates/pinakes-core/src/plugin/pipeline.rs
index c2ed430..8add7d1 100644
--- a/crates/pinakes-core/src/plugin/pipeline.rs
+++ b/crates/pinakes-core/src/plugin/pipeline.rs
@@ -1258,7 +1258,8 @@ mod tests {
         Instant::now()
           .checked_sub(CIRCUIT_BREAKER_COOLDOWN)
           .unwrap()
-          - Duration::from_secs(1),
+          .checked_sub(Duration::from_secs(1))
+          .unwrap(),
       );
     }
 
@@ -1277,7 +1278,8 @@ mod tests {
         Instant::now()
           .checked_sub(CIRCUIT_BREAKER_COOLDOWN)
           .unwrap()
-          - Duration::from_secs(1),
+          .checked_sub(Duration::from_secs(1))
+          .unwrap(),
       );
     }
     assert!(pipeline.is_healthy(plugin_id).await);