diff --git a/src/cortex-apply-patch/src/backup.rs b/src/cortex-apply-patch/src/backup.rs
index 8815686a..8529f423 100644
--- a/src/cortex-apply-patch/src/backup.rs
+++ b/src/cortex-apply-patch/src/backup.rs
@@ -232,7 +232,7 @@ impl BackupManager {
         }
 
         // Sort by timestamp (newest first)
-        backups.sort_by(|a, b| b.timestamp.cmp(&a.timestamp));
+        backups.sort_by_key(|b| std::cmp::Reverse(b.timestamp));
 
         Ok(backups)
     }
diff --git a/src/cortex-compact/src/auto_compaction/log_pruner.rs b/src/cortex-compact/src/auto_compaction/log_pruner.rs
index 94cb52a7..6eeca74c 100644
--- a/src/cortex-compact/src/auto_compaction/log_pruner.rs
+++ b/src/cortex-compact/src/auto_compaction/log_pruner.rs
@@ -96,7 +96,7 @@ impl LogPruner {
         }
 
         // Sort by modified time (newest first) for rotation priority
-        log_files.sort_by(|a, b| b.modified.cmp(&a.modified));
+        log_files.sort_by_key(|f| std::cmp::Reverse(f.modified));
 
         // Process each log file
         for (idx, log_file) in log_files.iter().enumerate() {