diff --git a/ksrackup b/ksrackup
index 2709367..81a1c36 100755
--- a/ksrackup
+++ b/ksrackup
@@ -70,9 +70,9 @@ elif command == "backup":
 elif command == "prune":
 	# Define backups conservation policy.
 	prune_params = [
-		"--keep-within", "28d",
-		"--keep-within-daily", "4m",
-		"--keep-within-weekly", "2y",
+		"--keep-within", "21d",
+		"--keep-within-daily", "3m",
+		"--keep-within-weekly", "1y",
 		"--keep-monthly", "100",
 	]
 	# Remove outdated backups.