diff --git a/index.d.ts b/index.d.ts
index 0bb845f..4dd6c85 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -9,9 +9,9 @@ export declare function asyncShuffleList(activeIndices: Uint32Array, seed: Uint8
 
 export declare function asyncUnshuffleList(activeIndices: Uint32Array, seed: Uint8Array, rounds: number): Promise<Uint32Array>
 
-export declare function computeProposerIndexElectra(effectiveBalanceIncrements: Uint16Array, activeIndices: Uint32Array, seed: Uint8Array, maxEffectiveBalanceElectra: number, effectiveBalanceIncrement: number, rounds: number): number
+export declare function computeProposerIndexElectra(seed: Uint8Array, activeIndices: Uint32Array, effectiveBalanceIncrements: Uint16Array, maxEffectiveBalanceElectra: number, effectiveBalanceIncrement: number, rounds: number): number
 
-export declare function computeSyncCommitteeIndicesElectra(syncCommitteeSize: number, seed: Uint8Array, activeIndices: Uint32Array, effectiveBalanceIncrements: Uint16Array, maxEffectiveBalanceElectra: number, effectiveBalanceIncrement: number, rounds: number): Uint32Array
+export declare function computeSyncCommitteeIndicesElectra(seed: Uint8Array, activeIndices: Uint32Array, effectiveBalanceIncrements: Uint16Array, syncCommitteeSize: number, maxEffectiveBalanceElectra: number, effectiveBalanceIncrement: number, rounds: number): Uint32Array
 
 export const SHUFFLE_ROUNDS_MAINNET: number
 
diff --git a/src/lib.rs b/src/lib.rs
index ea54a0d..d48ab59 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -386,9 +386,9 @@ impl ComputeShuffledIndex {
 
 #[napi]
 pub fn compute_proposer_index_electra(
-  effective_balance_increments: &[u16],
-  active_indices: &[u32],
   seed: &[u8],
+  active_indices: &[u32],
+  effective_balance_increments: &[u16],
   max_effective_balance_electra: i64,
   effective_balance_increment: i64,
   rounds: u32,
@@ -406,10 +406,10 @@ pub fn compute_proposer_index_electra(
 
 #[napi]
 pub fn compute_sync_committee_indices_electra(
-  sync_committee_size: u32,
   seed: &[u8],
   active_indices: &[u32],
   effective_balance_increments: &[u16],
+  sync_committee_size: u32,
   max_effective_balance_electra: i64,
   effective_balance_increment: i64,
   rounds: u32,
diff --git a/test/perf/committeeIndices.test.ts b/test/perf/committeeIndices.test.ts
index 8b291e6..34ac211 100644
--- a/test/perf/committeeIndices.test.ts
+++ b/test/perf/committeeIndices.test.ts
@@ -35,10 +35,10 @@ describe("computeIndices", () => {
       id: `RS   - computeSyncCommitteeIndices - ${listSize} indices`,
       fn: () => {
         computeSyncCommitteeIndicesElectra(
-          SYNC_COMMITTEE_SIZE,
           seed,
           activeIndices,
           effectiveBalanceIncrements,
+          SYNC_COMMITTEE_SIZE,
           MAX_EFFECTIVE_BALANCE_ELECTRA,
           EFFECTIVE_BALANCE_INCREMENT,
           SHUFFLE_ROUND_COUNT
diff --git a/test/unit/committeeIndices.test.ts b/test/unit/committeeIndices.test.ts
index 58f531d..e85fe75 100644
--- a/test/unit/committeeIndices.test.ts
+++ b/test/unit/committeeIndices.test.ts
@@ -23,9 +23,9 @@ describe("computeProposerIndex", () => {
     }
     expect(
       computeProposerIndexElectra(
-        effectiveBalanceIncrements,
-        activeIndices,
         seed,
+        activeIndices,
+        effectiveBalanceIncrements,
         MAX_EFFECTIVE_BALANCE_ELECTRA,
         EFFECTIVE_BALANCE_INCREMENT,
         SHUFFLE_ROUND_COUNT
@@ -46,10 +46,10 @@ describe("getNextSyncCommitteeIndices", () => {
     expect(
       new Array(
         ...computeSyncCommitteeIndicesElectra(
-          SYNC_COMMITTEE_SIZE,
           seed,
           activeIndices,
           effectiveBalanceIncrements,
+          SYNC_COMMITTEE_SIZE,
           MAX_EFFECTIVE_BALANCE_ELECTRA,
           EFFECTIVE_BALANCE_INCREMENT,
           SHUFFLE_ROUND_COUNT