diff --git a/programs/manifest/src/state/constants.rs b/programs/manifest/src/state/constants.rs
index c307ca984..c7dd1cc6f 100644
--- a/programs/manifest/src/state/constants.rs
+++ b/programs/manifest/src/state/constants.rs
@@ -18,6 +18,7 @@ pub const MARKET_FREE_LIST_BLOCK_SIZE: usize = MARKET_BLOCK_SIZE - FREE_LIST_OVE
 pub const GLOBAL_FREE_LIST_BLOCK_SIZE: usize = GLOBAL_BLOCK_SIZE - FREE_LIST_OVERHEAD;
 
 pub const NO_EXPIRATION_LAST_VALID_SLOT: u32 = 0;
+pub const NEXT_PLANNED_MAINTENANCE_SLOT: u32 = 293522000; // ~Fri Oct 04 2024 midnight GMT
 
 pub const MARKET_FIXED_DISCRIMINANT: u64 = 4859840929024028656;
 pub const GLOBAL_FIXED_DISCRIMINANT: u64 = 10787423733276977665;
diff --git a/programs/manifest/src/state/market.rs b/programs/manifest/src/state/market.rs
index 5d4bc6d18..9e2c036b1 100644
--- a/programs/manifest/src/state/market.rs
+++ b/programs/manifest/src/state/market.rs
@@ -30,7 +30,7 @@ use super::{
         assert_already_has_seat, assert_not_already_expired, get_now_slot, try_to_add_to_global,
     },
     DerefOrBorrow, DerefOrBorrowMut, DynamicAccount, RestingOrder, MARKET_FIXED_DISCRIMINANT,
-    MARKET_FREE_LIST_BLOCK_SIZE,
+    MARKET_FREE_LIST_BLOCK_SIZE, NEXT_PLANNED_MAINTENANCE_SLOT,
 };
 
 pub struct AddOrderToMarketArgs<'a, 'info> {
@@ -542,6 +542,12 @@ impl<Fixed: DerefOrBorrowMut<MarketFixed>, Dynamic: DerefOrBorrowMut<[u8]>>
         } = args;
         assert_already_has_seat(trader_index)?;
         let now_slot: u32 = current_slot.unwrap_or_else(|| get_now_slot());
+
+        require!(
+            now_slot < NEXT_PLANNED_MAINTENANCE_SLOT,
+            ManifestError::AlreadyExpired,
+            "manifest is under planned maintenance"
+        )?;
         assert_not_already_expired(last_valid_slot, now_slot)?;
 
         let DynamicAccount { fixed, dynamic } = self.borrow_mut();
diff --git a/programs/manifest/src/state/resting_order.rs b/programs/manifest/src/state/resting_order.rs
index dac9f0147..d889729bf 100644
--- a/programs/manifest/src/state/resting_order.rs
+++ b/programs/manifest/src/state/resting_order.rs
@@ -10,7 +10,9 @@ use solana_program::{entrypoint::ProgramResult, program_error::ProgramError};
 use static_assertions::const_assert_eq;
 use std::cmp::Ordering;
 
-use super::{constants::NO_EXPIRATION_LAST_VALID_SLOT, RESTING_ORDER_SIZE};
+use super::{
+    constants::NO_EXPIRATION_LAST_VALID_SLOT, NEXT_PLANNED_MAINTENANCE_SLOT, RESTING_ORDER_SIZE,
+};
 
 #[derive(
     Debug,
@@ -139,7 +141,9 @@ impl RestingOrder {
     }
 
     pub fn is_expired(&self, current_slot: u32) -> bool {
-        self.last_valid_slot != NO_EXPIRATION_LAST_VALID_SLOT && self.last_valid_slot < current_slot
+        current_slot >= NEXT_PLANNED_MAINTENANCE_SLOT
+            || (self.last_valid_slot != NO_EXPIRATION_LAST_VALID_SLOT
+                && self.last_valid_slot < current_slot)
     }
 
     pub fn get_is_bid(&self) -> bool {