diff --git a/counter_live_rknn.py b/counter_live_rknn.py
index 69c0e44..9a6cbdf 100644
--- a/counter_live_rknn.py
+++ b/counter_live_rknn.py
@@ -84,7 +84,7 @@ CROSS_SNAPSHOT_QUALITY = int(os.getenv("CROSS_SNAPSHOT_QUALITY", "85"))
 CROSS_SNAPSHOT_MAX_FILES = int(os.getenv("CROSS_SNAPSHOT_MAX_FILES", "1000"))
 CROSS_SNAPSHOT_MAX_AGE_DAYS = float(os.getenv("CROSS_SNAPSHOT_MAX_AGE_DAYS", "7"))
 # Run the cleanup sweep at most every N seconds to limit filesystem scans.
-CROSS_SNAPSHOT_CLEANUP_SEC = int(os.getenv("CROSS_SNAPSHOT_CLEANUP_SEC", "60"))
+CROSS_SNAPSHOT_CLEANUP_SEC = int(os.getenv("CROSS_SNAPSHOT_CLEANUP_SEC", "3600"))
 
 RATE_WINDOW_SEC = int(os.getenv("RATE_WINDOW_SEC", "60"))
 WARMUP_FRAMES = int(os.getenv("WARMUP_FRAMES", "30"))