diff --git a/pallets/slow-clap/Cargo.toml b/pallets/slow-clap/Cargo.toml
index 3cc1748..722ea73 100644
--- a/pallets/slow-clap/Cargo.toml
+++ b/pallets/slow-clap/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "ghost-slow-clap"
-version = "0.4.1"
+version = "0.4.2"
 description = "Applause protocol for the EVM bridge"
 license.workspace = true
 authors.workspace = true
diff --git a/pallets/slow-clap/src/lib.rs b/pallets/slow-clap/src/lib.rs
index d550004..e26a924 100644
--- a/pallets/slow-clap/src/lib.rs
+++ b/pallets/slow-clap/src/lib.rs
@@ -35,7 +35,7 @@ use sp_runtime::{
 };
 use sp_staking::{
     offence::{Kind, Offence, ReportOffence},
-    EraIndex, SessionIndex,
+    SessionIndex,
 };
 use sp_std::{collections::btree_map::BTreeMap, prelude::*, vec::Vec};
 
@@ -281,7 +281,7 @@ pub mod pallet {
             SlowClapOffence<IdentificationTuple<Self>>,
         >;
         type DisabledValidators: DisabledValidators;
-        type ExposureListener: ExposureListener<BalanceOf<Self>, EraIndex, AuthIndex>;
+        type ExposureListener: ExposureListener<BalanceOf<Self>, Self::AccountId>;
 
         #[pallet::constant]
         type MaxAuthorities: Get<u32>;
@@ -597,7 +597,8 @@ impl<T: Config> Pallet<T> {
         );
 
         let (session_index, clap_unique_hash) = Self::mended_session_index(&clap);
-        let authorities_length = Authorities::<T>::get(&session_index).len();
+        let validators = Validators::<T>::get(&session_index);
+        let validators_length = validators.len();
 
         let is_disabled = DisabledAuthorityIndexes::<T>::get(&session_index)
             .map(|bitmap| bitmap.exists(&clap.authority_index))
@@ -607,7 +608,12 @@ impl<T: Config> Pallet<T> {
 
         let applause_threshold = Perbill::from_parts(T::ApplauseThreshold::get());
         let threshold_amount = applause_threshold.mul_floor(TotalExposure::<T>::get());
-        let new_clapped_amount = T::ExposureListener::get_validator_exposure(clap.authority_index);
+
+        let maybe_account_id = T::ExposureListener::get_account_by_index(clap.authority_index as usize);
+        ensure!(maybe_account_id.is_some(), Error::<T>::NonExistentAuthorityIndex);
+
+        let account_id = maybe_account_id.unwrap();
+        let new_clapped_amount = T::ExposureListener::get_validator_exposure(&account_id);
 
         let mut applause_details =
             match ApplauseDetails::<T>::take(&session_index, &clap_unique_hash) {
@@ -617,7 +623,7 @@ impl<T: Config> Pallet<T> {
                         LatestExecutedBlock::<T>::get(&network_id) <= clap.block_number,
                         Error::<T>::ExecutedBlockIsHigher,
                     );
-                    ApplauseDetail::new(network_id, clap.block_number, authorities_length)
+                    ApplauseDetail::new(network_id, clap.block_number, validators_length)
                 }
             };
 
@@ -655,7 +661,7 @@ impl<T: Config> Pallet<T> {
         let is_enough = applause_details
             .authorities
             .count_ones()
-            .gt(&(authorities_length as u32 / 2));
+            .gt(&(validators_length as u32 / 2));
 
         if total_clapped > threshold_amount && is_enough && !applause_details.finalized {
             applause_details.finalized = true;
@@ -1265,9 +1271,7 @@ impl<T: Config> OneSessionHandler<T::AccountId> for Pallet<T> {
             BlockCommitments::<T>::remove(network_id);
         }
 
-        let current_era = T::ExposureListener::get_current_era();
-        let total_exposure = T::ExposureListener::get_total_exposure(current_era);
-
+        let total_exposure = T::ExposureListener::get_total_exposure();
         TotalExposure::<T>::set(total_exposure);
 
         let authorities = validators.map(|x| x.1).collect::<Vec<_>>();
diff --git a/pallets/slow-clap/src/mock.rs b/pallets/slow-clap/src/mock.rs
index cc7df50..365acc5 100644
--- a/pallets/slow-clap/src/mock.rs
+++ b/pallets/slow-clap/src/mock.rs
@@ -19,8 +19,8 @@ use sp_staking::{
 
 use sp_runtime::BuildStorage;
 
-use crate::{self as slow_clap, AuthIndex};
-use crate::{Config, EraIndex, ExposureListener};
+use crate::{self as slow_clap};
+use crate::{Config, ExposureListener};
 
 type Block = frame_system::mocking::MockBlock<Runtime>;
 
@@ -170,20 +170,20 @@ impl pallet_balances::Config for Runtime {
 type Balance = u64;
 
 pub struct TestExposureListener;
-impl ExposureListener<Balance, EraIndex, AuthIndex> for TestExposureListener
+impl ExposureListener<Balance, u64> for TestExposureListener
 where
     Balance: AtLeast32BitUnsigned + From<u64>,
 {
-    fn get_current_era() -> EraIndex {
-        1
+    fn get_account_by_index(index: usize) -> Option<u64> {
+        FixedValidators::get().get(index).copied()
     }
 
-    fn get_total_exposure(_era: EraIndex) -> Balance {
+    fn get_total_exposure() -> Balance {
         1_000_000_000u64.into()
     }
 
-    fn get_validator_exposure(index: AuthIndex) -> Balance {
-        match index {
+    fn get_validator_exposure(validator: &u64) -> Balance {
+        match validator {
             0 => 250_000_000u64,
             1 => 200_000_000u64,
             2 => 250_000_000u64,
diff --git a/pallets/slow-clap/src/tests.rs b/pallets/slow-clap/src/tests.rs
index 5a56dac..137a33c 100644
--- a/pallets/slow-clap/src/tests.rs
+++ b/pallets/slow-clap/src/tests.rs
@@ -531,8 +531,10 @@ fn should_applause_and_take_next_claps() {
         assert_eq!(Balances::total_balance(&receiver), 0);
         for i in 0..=3 {
             assert_ok!(do_clap_from(session_index, network_id, i, false));
-            clapped_amount =
-                TestExposureListener::get_validator_exposure(i).saturating_add(clapped_amount);
+            let account_id = TestExposureListener::get_account_by_index(i as usize)
+                .unwrap_or_default();
+            clapped_amount = TestExposureListener::get_validator_exposure(&account_id)
+                .saturating_add(clapped_amount);
             assert_clapped_amount(&session_index, &unique_hash, clapped_amount);
         }
         assert_applaused(&session_index, &unique_hash);