diff --git a/substrate/node/runtime/src/lib.rs b/substrate/node/runtime/src/lib.rs
index 82ffe5390f..190385d6bc 100644
--- a/substrate/node/runtime/src/lib.rs
+++ b/substrate/node/runtime/src/lib.rs
@@ -85,7 +85,7 @@ pub const VERSION: RuntimeVersion = RuntimeVersion {
 	// implementation changes and behavior does not, then leave spec_version as
 	// is and increment impl_version.
 	spec_version: 170,
-	impl_version: 170,
+	impl_version: 171,
 	apis: RUNTIME_API_VERSIONS,
 };
 
diff --git a/substrate/srml/elections-phragmen/src/lib.rs b/substrate/srml/elections-phragmen/src/lib.rs
index b7cf1a4013..58c0f11340 100644
--- a/substrate/srml/elections-phragmen/src/lib.rs
+++ b/substrate/srml/elections-phragmen/src/lib.rs
@@ -181,7 +181,7 @@ decl_module! {
 		/// Writes: O(V) given `V` votes. V is bounded by 16.
 		/// # </weight>
 		#[weight = SimpleDispatchInfo::FixedNormal(100_000)]
-		fn vote(origin, votes: Vec<T::AccountId>, value: BalanceOf<T>) {
+		fn vote(origin, votes: Vec<T::AccountId>, #[compact] value: BalanceOf<T>) {
 			let who = ensure_signed(origin)?;
 
 			let candidates_count = <Candidates<T>>::decode_len().unwrap_or(0) as usize;
diff --git a/substrate/srml/elections/src/lib.rs b/substrate/srml/elections/src/lib.rs
index 2a683879f8..8c90090349 100644
--- a/substrate/srml/elections/src/lib.rs
+++ b/substrate/srml/elections/src/lib.rs
@@ -344,7 +344,7 @@ decl_module! {
 			votes: Vec<bool>,
 			#[compact] index: VoteIndex,
 			hint: SetIndex,
-			value: BalanceOf<T>
+			#[compact] value: BalanceOf<T>
 		) -> Result {
 			let who = ensure_signed(origin)?;
 			Self::do_set_approvals(who, votes, index, hint, value)
@@ -361,7 +361,7 @@ decl_module! {
 			votes: Vec<bool>,
 			#[compact] index: VoteIndex,
 			hint: SetIndex,
-			value: BalanceOf<T>
+			#[compact] value: BalanceOf<T>
 		) -> Result {
 			let who = Self::proxy(ensure_signed(origin)?).ok_or("not a proxy")?;
 			Self::do_set_approvals(who, votes, index, hint, value)
diff --git a/substrate/srml/scored-pool/src/lib.rs b/substrate/srml/scored-pool/src/lib.rs
index 4739e165d1..609f17b457 100644
--- a/substrate/srml/scored-pool/src/lib.rs
+++ b/substrate/srml/scored-pool/src/lib.rs
@@ -91,7 +91,7 @@ mod tests;
 use codec::FullCodec;
 use rstd::prelude::*;
 use support::{
-	StorageValue, decl_module, decl_storage, decl_event, ensure,
+	decl_module, decl_storage, decl_event, ensure,
 	traits::{ChangeMembers, InitializeMembers, Currency, Get, ReservableCurrency},
 };
 use system::{self, ensure_root, ensure_signed};