diff --git a/source/Paysafe/MerchantAccountService.php b/source/Paysafe/MerchantAccountService.php
index 6ed85f9..abdd46e 100644
--- a/source/Paysafe/MerchantAccountService.php
+++ b/source/Paysafe/MerchantAccountService.php
@@ -169,6 +169,7 @@ public function createMerchantAccountAddress(MerchantAccountAddress $address)
         $address->setOptionalFields(array(
             'street2'
         ));
+        $this->fixState($address);
         $request = new Request(array(
             'method' => Request::POST,
             'uri' => $this->prepareURI('/accounts/' . $this->client->getAccount() . '/addresses'),
@@ -232,6 +233,7 @@ function createMerchantAccountBusinessOwnerAddress(MerchantAccountBusinessOwnerA
         $businessOwnerAddress->setOptionalFields(array(
             'street2'
         ));
+        $this->fixState($businessOwnerAddress);
         $request = new Request(array(
             'method' => Request::POST,
             'uri' => $this->prepareURI('/businessowners/' . $businessOwnerAddress->businnessOwnerId . '/currentaddresses'),
@@ -263,6 +265,7 @@ function createMerchantAccountBusinessOwnerAddressPrevious(MerchantAccountBusine
         $businessOwnerAddress->setOptionalFields(array(
             'street2'
         ));
+        $this->fixState($businessOwnerAddress);
         $request = new Request(array(
             'method' => Request::POST,
             'uri' => $this->prepareURI('/businessowners/' . $businessOwnerAddress->businnessOwnerId . '/previousaddresses'),
@@ -328,8 +331,8 @@ function addSubMerchantEftBankAccount(MerchantEftBankAccount $bankAccount)
     /**
      * Add Merchant Ach Bank Account
      *
-     * @param MerchantEftBankAccount $bankAccount
-     * @return MerchantEftBankAccount
+     * @param MerchantAchBankAccount $bankAccount
+     * @return MerchantAchBankAccount
      * @throws PaysafeException
      */
     function addSubMerchantAchBankAccount(MerchantAchBankAccount $bankAccount)
@@ -348,6 +351,29 @@ function addSubMerchantAchBankAccount(MerchantAchBankAccount $bankAccount)
         return new MerchantAchBankAccount($response);
     }
 
+    /**
+     * Update Ach Bank Account
+     *
+     * @param MerchantAchBankAccount $bankAccount
+     * @return MerchantAchBankAccount
+     * @throws PaysafeException
+     */
+    function updateMerchantAchBankAccount(MerchantAchBankAccount $bankAccount)
+    {
+        $bankAccount->setRequiredFields(array(
+            'accountNumber',
+            'routingNumber'
+        ));
+        $request = new Request(array(
+            'method' => Request::PUT,
+            'uri' => $this->prepareURI('/achbankaccounts/' . $bankAccount->id),
+            'body' => $bankAccount
+        ));
+        $response = $this->client->processRequest($request);
+
+        return new MerchantAchBankAccount($response);
+    }
+
     /**
      * Add Sub Merchant Eft Bank Account
      *
@@ -372,6 +398,30 @@ function addMerchantEftBankAccount(MerchantEftBankAccount $bankAccount)
         return new MerchantEftBankAccount($response);
     }
 
+    /**
+     * Update Eft Bank Account
+     *
+     * @param MerchantEftBankAccount $bankAccount
+     * @return MerchantEftBankAccount
+     * @throws PaysafeException
+     */
+    function updateMerchantEftBankAccount(MerchantEftBankAccount $bankAccount)
+    {
+        $bankAccount->setRequiredFields(array(
+            'accountNumber',
+            'transitNumber',
+            'institutionId'
+        ));
+        $request = new Request(array(
+            'method' => Request::PUT,
+            'uri' => $this->prepareURI('/eftbankaccounts/' . $bankAccount->id ),
+            'body' => $bankAccount
+        ));
+        $response = $this->client->processRequest($request);
+
+        return new MerchantEftBankAccount($response);
+    }
+
     /**
      * Get Our Terms and Conditions
      *
@@ -478,4 +528,14 @@ function createMerchant(Merchant $merchant)
 
         return new Merchant($response);
     }
+
+    /**
+     * @param JSONObject $address
+     */
+    function fixState(JSONObject $address)
+    {
+        if (isset($address->state)) {
+            $address->state = str_ireplace('OR_', 'OR', $address->state);
+        }
+    }
 }