diff --git a/maintenance.md b/maintenance.md
index 32a1dd0..a3f696e 100644
--- a/maintenance.md
+++ b/maintenance.md
@@ -45,3 +45,4 @@ Newest entries at the bottom.
 - 2026-10-05: Fuel lines checked for leaks.
 - 2026-10-05: Fire extinguishers checked.
 - 2026-10-05: Hull inspection, no leaks.
+- 2026-10-06: Water recycling filters replaced.