diff --git a/polkadot/runtime/common/src/attestations.rs b/polkadot/runtime/common/src/attestations.rs
index c48acb4d52..42b5262a77 100644
--- a/polkadot/runtime/common/src/attestations.rs
+++ b/polkadot/runtime/common/src/attestations.rs
@@ -131,6 +131,7 @@ decl_module! {
 		type Error = Error<T>;
 
 		/// Provide candidate receipts for parachains, in ascending order by id.
+		#[weight = frame_support::weights::SimpleDispatchInfo::default()]
 		fn more_attestations(origin, _more: MoreAttestations) -> DispatchResult {
 			ensure_none(origin)?;
 			ensure!(!DidUpdate::exists(), Error::<T>::TooManyAttestations);
diff --git a/polkadot/runtime/common/src/crowdfund.rs b/polkadot/runtime/common/src/crowdfund.rs
index d4f00d6ed5..036fab6524 100644
--- a/polkadot/runtime/common/src/crowdfund.rs
+++ b/polkadot/runtime/common/src/crowdfund.rs
@@ -294,6 +294,7 @@ decl_module! {
 		/// Contribute to a crowd sale. This will transfer some balance over to fund a parachain
 		/// slot. It will be withdrawable in two instances: the parachain becomes retired; or the
 		/// slot is unable to be purchased and the timeout expires.
+		#[weight = SimpleDispatchInfo::default()]
 		fn contribute(origin, #[compact] index: FundIndex, #[compact] value: BalanceOf<T>) {
 			let who = ensure_signed(origin)?;
 
@@ -352,6 +353,7 @@ decl_module! {
 		/// - `index` is the fund index that `origin` owns and whose deploy data will be set.
 		/// - `code_hash` is the hash of the parachain's Wasm validation function.
 		/// - `initial_head_data` is the parachain's initial head data.
+		#[weight = SimpleDispatchInfo::default()]
 		fn fix_deploy_data(origin,
 			#[compact] index: FundIndex,
 			code_hash: T::Hash,
@@ -377,6 +379,7 @@ decl_module! {
 		///
 		/// - `index` is the fund index that `origin` owns and whose deploy data will be set.
 		/// - `para_id` is the parachain index that this fund won.
+		#[weight = SimpleDispatchInfo::default()]
 		fn onboard(origin,
 			#[compact] index: FundIndex,
 			#[compact] para_id: ParaId
@@ -405,6 +408,7 @@ decl_module! {
 		}
 
 		/// Note that a successful fund has lost its parachain slot, and place it into retirement.
+		#[weight = SimpleDispatchInfo::default()]
 		fn begin_retirement(origin, #[compact] index: FundIndex) {
 			let _ = ensure_signed(origin)?;
 
@@ -426,6 +430,7 @@ decl_module! {
 		}
 
 		/// Withdraw full balance of a contributor to an unsuccessful or off-boarded fund.
+		#[weight = SimpleDispatchInfo::default()]
 		fn withdraw(origin, #[compact] index: FundIndex) {
 			let who = ensure_signed(origin)?;
 
@@ -456,6 +461,7 @@ decl_module! {
 		/// Remove a fund after either: it was unsuccessful and it timed out; or it was successful
 		/// but it has been retired from its parachain slot. This places any deposits that were not
 		/// withdrawn into the treasury.
+		#[weight = SimpleDispatchInfo::default()]
 		fn dissolve(origin, #[compact] index: FundIndex) {
 			let _ = ensure_signed(origin)?;
 
diff --git a/polkadot/runtime/common/src/registrar.rs b/polkadot/runtime/common/src/registrar.rs
index 2745c9a93b..ecbcfdf5f0 100644
--- a/polkadot/runtime/common/src/registrar.rs
+++ b/polkadot/runtime/common/src/registrar.rs
@@ -293,6 +293,7 @@ decl_module! {
 		/// - `count`: The number of parathreads.
 		///
 		/// Must be called from Root origin.
+		#[weight = SimpleDispatchInfo::default()]
 		fn set_thread_count(origin, count: u32) {
 			ensure_root(origin)?;
 			ThreadCount::put(count);
@@ -306,6 +307,7 @@ decl_module! {
 		/// Unlike `register_para`, this function does check that the maximum code size
 		/// and head data size are respected, as parathread registration is an atomic
 		/// action.
+		#[weight = SimpleDispatchInfo::default()]
 		fn register_parathread(origin,
 			code: Vec<u8>,
 			initial_head_data: Vec<u8>,
@@ -345,6 +347,7 @@ decl_module! {
 		/// This is a kind of special transaction that should be heavily prioritized in the
 		/// transaction pool according to the `value`; only `ThreadCount` of them may be presented
 		/// in any single block.
+		#[weight = SimpleDispatchInfo::default()]
 		fn select_parathread(origin,
 			#[compact] _id: ParaId,
 			_collator: CollatorId,
@@ -361,6 +364,7 @@ decl_module! {
 		/// Ensure that before calling this that any funds you want emptied from the parathread's
 		/// account is moved out; after this it will be impossible to retrieve them (without
 		/// governance intervention).
+		#[weight = SimpleDispatchInfo::default()]
 		fn deregister_parathread(origin) {
 			let id = parachains::ensure_parachain(<T as Trait>::Origin::from(origin))?;
 
@@ -384,6 +388,7 @@ decl_module! {
 		/// `ParaId` to be a long-term identifier of a notional "parachain". However, their
 		/// scheduling info (i.e. whether they're a parathread or parachain), auction information
 		/// and the auction deposit are switched.
+		#[weight = SimpleDispatchInfo::default()]
 		fn swap(origin, #[compact] other: ParaId) {
 			let id = parachains::ensure_parachain(<T as Trait>::Origin::from(origin))?;