diff --git a/build.gradle.kts b/build.gradle.kts
index 727667bc6..9daaadd97 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -52,7 +52,7 @@ allprojects {
 }
 
 group = "exchange.dydx.abacus"
-version = "1.11.21"
+version = "1.11.22"
 
 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..1e48b71c9 100644
--- a/src/commonMain/kotlin/exchange.dydx.abacus/functional/vault/VaultDepositWithdrawForm.kt
+++ b/src/commonMain/kotlin/exchange.dydx.abacus/functional/vault/VaultDepositWithdrawForm.kt
@@ -232,13 +232,9 @@ object VaultDepositWithdrawFormValidator {
         }
 
         val withdrawnAmountIncludingSlippage = slippageResponse?.expectedAmount
-        val postOpVaultBalance = if (vaultAccount?.balanceUsdc != null) {
-            when (formData.action) {
-                VaultFormAction.DEPOSIT -> vaultAccount.balanceUsdc + amount
-                VaultFormAction.WITHDRAW -> vaultAccount.balanceUsdc - amount
-            }
-        } else {
-            null
+        val postOpVaultBalance = when (formData.action) {
+            VaultFormAction.DEPOSIT -> (vaultAccount?.balanceUsdc ?: 0.0) + amount
+            VaultFormAction.WITHDRAW -> (vaultAccount?.balanceUsdc ?: 0.0) - amount
         }
 
         val (postOpFreeCollateral, postOpMarginUsage) = if (accountData?.freeCollateral != null && accountData.marginUsage != null) {
diff --git a/v4_abacus.podspec b/v4_abacus.podspec
index 141225b20..35d5b375b 100644
--- a/v4_abacus.podspec
+++ b/v4_abacus.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |spec|
     spec.name                     = 'v4_abacus'
-    spec.version                  = '1.11.21'
+    spec.version                  = '1.11.22'
     spec.homepage                 = 'https://github.com/dydxprotocol/v4-abacus'
     spec.source                   = { :http=> ''}
     spec.authors                  = ''