diff --git a/zrml/prediction-markets/src/lib.rs b/zrml/prediction-markets/src/lib.rs
index 12984ce5b..68742a4e1 100644
--- a/zrml/prediction-markets/src/lib.rs
+++ b/zrml/prediction-markets/src/lib.rs
@@ -2075,7 +2075,7 @@ mod pallet {
     #[pallet::storage]
     pub type MarketsCollectingSubsidy<T: Config> = StorageValue<
         _,
-        BoundedVec<SubsidyUntil<T::BlockNumber, MomentOf<T>, MarketIdOf<T>>, ConstU32<1_048_576>>,
+        BoundedVec<SubsidyUntil<T::BlockNumber, MomentOf<T>, MarketIdOf<T>>, ConstU32<16>>,
         ValueQuery,
     >;