diff --git a/pallets/subtensor/src/utils/rate_limiting.rs b/pallets/subtensor/src/utils/rate_limiting.rs
index cc3ebc5a3c..8b30f9665b 100644
--- a/pallets/subtensor/src/utils/rate_limiting.rs
+++ b/pallets/subtensor/src/utils/rate_limiting.rs
@@ -39,7 +39,7 @@ impl<T: Config> Pallet<T> {
     /// Get the rate limit for a specific transaction type
     pub fn get_rate_limit(tx_type: &TransactionType) -> u64 {
         match tx_type {
-            TransactionType::SetChildren => 7200, // Cannot set children twice within a day
+            TransactionType::SetChildren => 150, // 30 minutes
             TransactionType::SetChildkeyTake => TxChildkeyTakeRateLimit::<T>::get(),
             TransactionType::Unknown => 0, // Default to no limit for unknown types (no limit)
             TransactionType::RegisterNetwork => NetworkRateLimit::<T>::get(),
diff --git a/runtime/src/lib.rs b/runtime/src/lib.rs
index 2316cb5f4f..24d36b179b 100644
--- a/runtime/src/lib.rs
+++ b/runtime/src/lib.rs
@@ -220,7 +220,7 @@ pub const VERSION: RuntimeVersion = RuntimeVersion {
     //   `spec_version`, and `authoring_version` are the same between Wasm and native.
     // This value is set to 100 to notify Polkadot-JS App (https://polkadot.js.org/apps) to use
     //   the compatible custom types.
-    spec_version: 215,
+    spec_version: 216,
     impl_version: 1,
     apis: RUNTIME_API_VERSIONS,
     transaction_version: 1,