diff --git a/build.gradle.kts b/build.gradle.kts
index 3932e939d..19d1c3fa1 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -52,7 +52,7 @@ allprojects {
 }
 
 group = "exchange.dydx.abacus"
-version = "1.11.19"
+version = "1.11.20"
 
 repositories {
     google()
diff --git a/src/commonMain/kotlin/exchange.dydx.abacus/functional/vault/VaultDepositWithdrawForm.kt b/src/commonMain/kotlin/exchange.dydx.abacus/functional/vault/VaultDepositWithdrawForm.kt
index c4bcdb407..f8df2e489 100644
--- a/src/commonMain/kotlin/exchange.dydx.abacus/functional/vault/VaultDepositWithdrawForm.kt
+++ b/src/commonMain/kotlin/exchange.dydx.abacus/functional/vault/VaultDepositWithdrawForm.kt
@@ -1,5 +1,6 @@
 package exchange.dydx.abacus.functional.vault
 
+import com.ionspin.kotlin.bignum.decimal.toBigDecimal
 import exchange.dydx.abacus.output.input.ErrorFormat
 import exchange.dydx.abacus.output.input.ErrorParam
 import exchange.dydx.abacus.output.input.ErrorResources
@@ -165,15 +166,15 @@ data class VaultDepositWithdrawSubmissionData(
 @Serializable
 data class VaultDepositData(
     val subaccountFrom: String,
-    val amount: Double
+    val quoteQuantums: String
 )
 
 @JsExport
 @Serializable
 data class VaultWithdrawData(
     val subaccountTo: String,
-    val shares: Double,
-    val minAmount: Double
+    val shares: String,
+    val minQuoteQuantums: String,
 )
 
 @JsExport
@@ -201,7 +202,9 @@ object VaultDepositWithdrawFormValidator {
 
     private const val SLIPPAGE_PERCENT_WARN = 0.01
     private const val SLIPPAGE_PERCENT_ACK = 0.04
-    private const val SLIPPAGE_TOLERANCE = 0.01
+    private const val EXTRA_SLIPPAGE_TOLERANCE = 0.01
+
+    private const val QUANTUMS_MULTIPLIER = 1_000_000
 
     fun getVaultDepositWithdrawSlippageResponse(apiResponse: String): VaultDepositWithdrawSlippageResponse? {
         return parser.asTypedObject<VaultDepositWithdrawSlippageResponse>(apiResponse)
@@ -331,7 +334,7 @@ object VaultDepositWithdrawFormValidator {
                 VaultFormAction.DEPOSIT -> VaultDepositWithdrawSubmissionData(
                     deposit = VaultDepositData(
                         subaccountFrom = "0",
-                        amount = amount,
+                        quoteQuantums = amount.toBigDecimal().times(QUANTUMS_MULTIPLIER).toBigInteger().toString(),
                     ),
                     withdraw = null,
                 )
@@ -340,8 +343,10 @@ object VaultDepositWithdrawFormValidator {
                     withdraw = if (sharesToAttemptWithdraw != null && sharesToAttemptWithdraw > 0 && slippageResponse != null) {
                         VaultWithdrawData(
                             subaccountTo = "0",
-                            shares = sharesToAttemptWithdraw,
-                            minAmount = slippageResponse.expectedAmount * (1 - SLIPPAGE_TOLERANCE),
+                            shares = sharesToAttemptWithdraw.toBigDecimal().toBigInteger().toString(),
+                            minQuoteQuantums = (slippageResponse.expectedAmount * (1 - EXTRA_SLIPPAGE_TOLERANCE)).toBigDecimal().times(
+                                QUANTUMS_MULTIPLIER,
+                            ).toBigInteger().toString(),
                         )
                     } else {
                         null
diff --git a/src/commonTest/kotlin/exchange.dydx.abacus/functional/vault/VaultFormTests.kt b/src/commonTest/kotlin/exchange.dydx.abacus/functional/vault/VaultFormTests.kt
index 6380c2694..96045c275 100644
--- a/src/commonTest/kotlin/exchange.dydx.abacus/functional/vault/VaultFormTests.kt
+++ b/src/commonTest/kotlin/exchange.dydx.abacus/functional/vault/VaultFormTests.kt
@@ -1,5 +1,6 @@
 package exchange.dydx.abacus.functional.vault
 
+import com.ionspin.kotlin.bignum.decimal.toBigDecimal
 import exchange.dydx.abacus.output.input.ValidationError
 import kollections.iListOf
 import kollections.toIList
@@ -48,7 +49,7 @@ class VaultFormTests {
                 submissionData = VaultDepositWithdrawSubmissionData(
                     deposit = VaultDepositData(
                         subaccountFrom = "0",
-                        amount = 100.0,
+                        quoteQuantums = "100000000",
                     ),
                     withdraw = null,
                 ),
@@ -99,8 +100,8 @@ class VaultFormTests {
                     deposit = null,
                     withdraw = VaultWithdrawData(
                         subaccountTo = "0",
-                        shares = 100.0,
-                        minAmount = 98 * .99,
+                        shares = "100",
+                        minQuoteQuantums = (98 * .99).toBigDecimal().times(1000000).toBigInteger().toString(),
                     ),
                 ),
                 summaryData = VaultFormSummaryData(
diff --git a/v4_abacus.podspec b/v4_abacus.podspec
index 1fa8ca28e..0935cb300 100644
--- a/v4_abacus.podspec
+++ b/v4_abacus.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |spec|
     spec.name                     = 'v4_abacus'
-    spec.version                  = '1.11.19'
+    spec.version                  = '1.11.20'
     spec.homepage                 = 'https://github.com/dydxprotocol/v4-abacus'
     spec.source                   = { :http=> ''}
     spec.authors                  = ''