diff --git a/src/fixtures/pvm.ts b/src/fixtures/pvm.ts
index ae4e052ae..1e2f2170d 100644
--- a/src/fixtures/pvm.ts
+++ b/src/fixtures/pvm.ts
@@ -283,7 +283,7 @@ export const transformSubnetTx = () =>
     int(),
     int(),
     int(),
-    int(),
+    bigIntPr(),
     byte(),
     int(),
     input(),
@@ -303,7 +303,7 @@ export const transformSubnetTxBytes = () =>
     intBytes(),
     intBytes(),
     intBytes(),
-    intBytes(),
+    bigIntPrBytes(),
     byteByte(),
     intBytes(),
     bytesForInt(10),
diff --git a/src/serializable/pvm/transformSubnetTx.ts b/src/serializable/pvm/transformSubnetTx.ts
index c16f93198..0a1f41a88 100644
--- a/src/serializable/pvm/transformSubnetTx.ts
+++ b/src/serializable/pvm/transformSubnetTx.ts
@@ -31,7 +31,7 @@ export class TransformSubnetTx extends AbstractSubnetTx {
     public readonly minStakeDuration: Int,
     public readonly maxStakeDuration: Int,
     public readonly minDelegationFee: Int,
-    public readonly minDelegatorStake: Int,
+    public readonly minDelegatorStake: BigIntPr,
     public readonly maxValidatorWeightFactor: Byte,
     public readonly uptimeRequirement: Int,
     public readonly subnetAuth: Serializable,
@@ -80,7 +80,7 @@ export class TransformSubnetTx extends AbstractSubnetTx {
         Int,
         Int,
         Int,
-        Int,
+        BigIntPr,
         Byte,
         Int,
         Codec,
diff --git a/src/utils/validateBurnedAmount/validateStaticBurnedAmount.test.ts b/src/utils/validateBurnedAmount/validateStaticBurnedAmount.test.ts
index ed31a4176..5efb0b54b 100644
--- a/src/utils/validateBurnedAmount/validateStaticBurnedAmount.test.ts
+++ b/src/utils/validateBurnedAmount/validateStaticBurnedAmount.test.ts
@@ -222,7 +222,7 @@ describe('validateStaticBurnedAmount', () => {
         1,
         2,
         3,
-        4,
+        4n,
         5,
         6,
         [0, 2],
diff --git a/src/vms/pvm/builder.test.ts b/src/vms/pvm/builder.test.ts
index 93c762e27..895bd2a94 100644
--- a/src/vms/pvm/builder.test.ts
+++ b/src/vms/pvm/builder.test.ts
@@ -789,7 +789,7 @@ describe('pvmBuilder', () => {
       1,
       2,
       3,
-      4,
+      4n,
       5,
       6,
       subnetAuth,
@@ -818,7 +818,7 @@ describe('pvmBuilder', () => {
       new Int(1),
       new Int(2),
       new Int(3),
-      new Int(4),
+      new BigIntPr(4n),
       new Byte(hexToBuffer('0x5')),
       new Int(6),
       Input.fromNative(subnetAuth),
diff --git a/src/vms/pvm/builder.ts b/src/vms/pvm/builder.ts
index a962b14a3..ff80b3087 100644
--- a/src/vms/pvm/builder.ts
+++ b/src/vms/pvm/builder.ts
@@ -788,7 +788,7 @@ export function newTransformSubnetTx(
   minStakeDuration: number,
   maxStakeDuration: number,
   minDelegationFee: number,
-  minDelegatorStake: number,
+  minDelegatorStake: bigint,
   maxValidatorWeightFactor: number,
   uptimeRequirement: number,
   subnetAuth: number[],
@@ -825,7 +825,7 @@ export function newTransformSubnetTx(
       new Int(minStakeDuration),
       new Int(maxStakeDuration),
       new Int(minDelegationFee),
-      new Int(minDelegatorStake),
+      new BigIntPr(minDelegatorStake),
       new Byte(hexToBuffer(maxValidatorWeightFactor.toString(16))),
       new Int(uptimeRequirement),
       Input.fromNative(subnetAuth),