diff --git a/.gitignore b/.gitignore
index c685744..f3bb1ce 100644
--- a/.gitignore
+++ b/.gitignore
@@ -72,3 +72,5 @@ data/
 run-dev.sh
 
 !README.md
+
+wallet.json
diff --git a/package.json b/package.json
index 620f27f..81b245e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ipfs-bch-wallet-service",
-  "version": "3.0.0",
+  "version": "3.1.0",
   "description": "IPFS and REST service providing blockchain access needed by a wallet. ",
   "main": "index.js",
   "type": "module",
diff --git a/production/docker/docker-compose.yml b/production/docker/docker-compose.yml
index 6bfc309..9722fc9 100644
--- a/production/docker/docker-compose.yml
+++ b/production/docker/docker-compose.yml
@@ -22,7 +22,7 @@ services:
       options:
         max-size: '10m'
         max-file: '10'
-    mem_limit: 1000mb
+    #mem_limit: 1500mb
     links:
       - mongo-bch-service
     ports:
diff --git a/src/adapters/wallet.adapter.js b/src/adapters/wallet.adapter.js
index 9dd2052..1870a33 100644
--- a/src/adapters/wallet.adapter.js
+++ b/src/adapters/wallet.adapter.js
@@ -49,7 +49,7 @@ class Wallet {
         advancedConfig.restURL = this.config.apiServer
       }
 
-      console.log('advancedConfig setting when creating wallet: ', advancedConfig)
+      // console.log('advancedConfig setting when creating wallet: ', advancedConfig)
 
       // Instantiate minimal-slp-wallet.
       if (walletData.mnemonic) {
@@ -96,8 +96,8 @@ class Wallet {
 
       // Try to open the wallet.json file.
       try {
-        // console.log('this.config.walletFile: ', this.config.walletFile)
         walletData = await this.jsonFiles.readJSON(this.config.walletFile)
+        walletData = walletData.wallet
       } catch (err) {
         // Create a new wallet file if one does not already exist.
         console.log('Wallet file not found. Creating new wallet.json file.')
@@ -112,7 +112,7 @@ class Wallet {
         walletData.nextAddress = 1
 
         // Write the wallet data to the JSON file.
-        await this.jsonFiles.writeJSON(walletData, this.config.walletFile)
+        await this.jsonFiles.writeJSON({ wallet: walletData }, this.config.walletFile)
       }
 
       // console.log('walletData: ', walletData)
@@ -149,13 +149,18 @@ class Wallet {
   async incrementNextAddress () {
     try {
       const walletData = await this.openWallet()
-      // console.log('original walletdata: ', walletData)
+
+      await this.instanceWalletWithoutInitialization(walletData)
+
       walletData.nextAddress++
       // console.log('walletData finish: ', walletData)
-      await this.jsonFiles.writeJSON(walletData, this.WALLET_FILE)
+
+      await this.jsonFiles.writeJSON({ wallet: walletData }, this.config.walletFile)
+
       // Update the working instance of the wallet.
       this.bchWallet.walletInfo.nextAddress++
       // console.log('this.bchWallet.walletInfo: ', this.bchWallet.walletInfo)
+
       return walletData.nextAddress
     } catch (err) {
       console.error('Error in incrementNextAddress()')
@@ -173,16 +178,21 @@ class Wallet {
         // Increment the HD index and generate a new key pair.
         hdIndex = await this.incrementNextAddress()
       }
+
       const mnemonic = this.bchWallet.walletInfo.mnemonic
+
       // root seed buffer
       const rootSeed = await this.bchWallet.bchjs.Mnemonic.toSeed(mnemonic)
       const masterHDNode = this.bchWallet.bchjs.HDNode.fromSeed(rootSeed)
+
       // HDNode of BIP44 account
       // const account = this.bchWallet.bchjs.HDNode.derivePath(masterHDNode, "m/44'/245'/0'")
       const childNode = masterHDNode.derivePath(`m/44'/245'/0'/0/${hdIndex}`)
       const cashAddress = this.bchWallet.bchjs.HDNode.toCashAddress(childNode)
       console.log('Generating a new key pair for cashAddress: ', cashAddress)
+
       const wif = this.bchWallet.bchjs.HDNode.toWIF(childNode)
+
       const outObj = {
         cashAddress,
         wif,
diff --git a/test/unit/adapters/wallet.adapter.unit.js b/test/unit/adapters/wallet.adapter.unit.js
index 7ac98ac..29dc833 100644
--- a/test/unit/adapters/wallet.adapter.unit.js
+++ b/test/unit/adapters/wallet.adapter.unit.js
@@ -18,7 +18,7 @@ import * as url from 'url'
 const __dirname = url.fileURLToPath(new URL('.', import.meta.url))
 
 // Global constants
-const testWalletFile = `${__dirname.toString()}/test-wallet.json`
+const testWalletFile = `${__dirname.toString()}test-wallet.json`
 
 describe('#wallet', () => {
   let uut
@@ -59,7 +59,7 @@ describe('#wallet', () => {
       // Mock dependencies
       uut.BchWallet = MockBchWallet
       // Ensure we open the test file, not the production wallet file.
-      uut.walletFile = testWalletFile
+      uut.config.walletFile = testWalletFile
       const result = await uut.openWallet()
       // console.log('result: ', result)
       assert.property(result, 'mnemonic')
@@ -75,7 +75,7 @@ describe('#wallet', () => {
     it('should open existing wallet file', async () => {
       // This test case uses the file created in the previous test case.
       // Ensure we open the test file, not the production wallet file.
-      uut.walletFile = testWalletFile
+      uut.config.walletFile = testWalletFile
       const result = await uut.openWallet()
       // console.log('result: ', result)
       assert.property(result, 'mnemonic')
@@ -274,11 +274,12 @@ describe('#wallet', () => {
   describe('#getKeyPair', () => {
     it('should return an object with a key pair', async () => {
       // Ensure we open the test file, not the production wallet file.
-      uut.WALLET_FILE = testWalletFile
-      // mock instance of minimal-slp-wallet
-      uut.bchWallet = new MockBchWallet()
+      // uut.WALLET_FILE = testWalletFile
+      uut.config.walletFile = testWalletFile
+
       const result = await uut.getKeyPair()
       // console.log('result: ', result)
+
       assert.property(result, 'cashAddress')
       assert.property(result, 'wif')
       assert.property(result, 'hdIndex')
diff --git a/wallet.json b/wallet.json
deleted file mode 100644
index 3c81c77..0000000
--- a/wallet.json
+++ /dev/null
@@ -1,11 +0,0 @@
-{
-  "mnemonic": "course abstract aerobic deer try switch turtle diet fence affair butter top",
-  "privateKey": "L5D2UAam8tvo3uii5kpgaGyjvVMimdrXu8nWGQSQjuuAix6ji1YQ",
-  "publicKey": "0379433ffc401483ade310469953c1cba77c71af904f07c15bde330d7198b4d6dc",
-  "cashAddress": "bitcoincash:qzl0d3gcqeypv4cy7gh8rgdszxa9vvm2acv7fqtd00",
-  "address": "bitcoincash:qzl0d3gcqeypv4cy7gh8rgdszxa9vvm2acv7fqtd00",
-  "slpAddress": "simpleledger:qzl0d3gcqeypv4cy7gh8rgdszxa9vvm2acq9zm7d33",
-  "legacyAddress": "1JQj1KcQL7GPKzc1D2PvdUSgw3MbDtrHzi",
-  "hdPath": "m/44'/245'/0'/0/0",
-  "nextAddress": 1
-}
\ No newline at end of file