diff --git a/14062899_pm25.csv b/14062899_pm25.csv
index 43f3f6c2197a09138f353a7444de182b6dc50ad5..212529f7ca655f2b5ac05e7e325b9495a4a6b9b3 100644
--- a/14062899_pm25.csv
+++ b/14062899_pm25.csv
@@ -162,3 +162,4 @@ timestamp,value
 2025-01-23T13:02:45.441030,1.85
 2025-01-23T13:19:45.285762,2.03
 2025-01-23T13:36:48.122999,1.70
+2025-01-23T13:53:47.607630,1.23