diff --git a/.github/workflows/e2e_test.yml b/.github/workflows/e2e_test.yml
index 6f9e49bd..56f8f641 100644
--- a/.github/workflows/e2e_test.yml
+++ b/.github/workflows/e2e_test.yml
@@ -24,4 +24,4 @@ jobs:
         API_KEY_NAME: ${{ secrets.API_KEY_NAME }}
         API_KEY_PRIVATE_KEY: ${{ secrets.API_KEY_PRIVATE_KEY }}
         WALLET_DATA: ${{ secrets.WALLET_DATA }}
-      run: bundle exec rspec spec/e2e/production.rb
\ No newline at end of file
+      run: bundle exec rspec spec/e2e/production.rb
diff --git a/lib/coinbase/constants.rb b/lib/coinbase/constants.rb
index a8cd11ec..07b32d91 100644
--- a/lib/coinbase/constants.rb
+++ b/lib/coinbase/constants.rb
@@ -8,8 +8,8 @@ module Coinbase
   ETH = Asset.new(network_id: :base_sepolia, asset_id: :eth, display_name: 'Ether')
   USDC = Asset.new(network_id: :base_sepolia, asset_id: :usdc, display_name: 'USD Coin',
                    address_id: '0x036CbD53842c5426634e7929541eC2318f3dCF7e')
-  WETH =  Asset.new(network_id: :base_sepolia, asset_id: :weth, display_name: 'Wrapped Ether',
-                    address_id: '0x4200000000000000000000000000000000000006')
+  WETH = Asset.new(network_id: :base_sepolia, asset_id: :weth, display_name: 'Wrapped Ether',
+                   address_id: '0x4200000000000000000000000000000000000006')
   # The Base Sepolia Network.
   BASE_SEPOLIA = Network.new(
     network_id: :base_sepolia,
@@ -39,6 +39,6 @@ module Coinbase
     gwei: true, # A medium denomination of Ether, typically used in gas prices.
     wei: true, # The smallest denomination of Ether.
     usdc: true, # USD Coin, a stablecoin pegged to the US Dollar.
-    weth: true, # Wrapped Ether, the ERC-20 compatible version of Ether.
+    weth: true # Wrapped Ether, the ERC-20 compatible version of Ether.
   }.freeze
 end
diff --git a/lib/coinbase/transfer.rb b/lib/coinbase/transfer.rb
index 69ae6158..da76dd53 100644
--- a/lib/coinbase/transfer.rb
+++ b/lib/coinbase/transfer.rb
@@ -174,9 +174,9 @@ def wait!(interval_seconds = 0.2, timeout_seconds = 10)
     # Returns a String representation of the Transfer.
     # @return [String] a String representation of the Transfer
     def to_s
-      "Coinbase::Transfer{transfer_id: '#{transfer_id}', network_id: '#{network_id}', " +
-        "from_address_id: '#{from_address_id}', destination_address_id: '#{destination_address_id}', " +
-        "asset_id: '#{asset_id}', amount: '#{amount}', transaction_hash: '#{transaction_hash}', " +
+      "Coinbase::Transfer{transfer_id: '#{transfer_id}', network_id: '#{network_id}', " \
+        "from_address_id: '#{from_address_id}', destination_address_id: '#{destination_address_id}', " \
+        "asset_id: '#{asset_id}', amount: '#{amount}', transaction_hash: '#{transaction_hash}', " \
         "transaction_link: '#{transaction_link}', status: '#{status}'}"
     end
 
diff --git a/lib/coinbase/user.rb b/lib/coinbase/user.rb
index a519075c..e9095201 100644
--- a/lib/coinbase/user.rb
+++ b/lib/coinbase/user.rb
@@ -81,7 +81,7 @@ def save_wallet(wallet, encrypt: false)
       iv = ''
       if encrypt
         shared_secret = store_encryption_key
-        cipher = OpenSSL::Cipher::AES256.new(:GCM).encrypt
+        cipher = OpenSSL::Cipher.new('aes-256-gcm').encrypt
         cipher.key = OpenSSL::Digest.digest('SHA256', shared_secret)
         iv = cipher.random_iv
         cipher.iv = iv
@@ -96,7 +96,7 @@ def save_wallet(wallet, encrypt: false)
         seed: seed_to_store,
         encrypted: encrypt,
         auth_tag: auth_tag,
-        iv: iv,
+        iv: iv
       }
 
       File.open(Coinbase.configuration.backup_file_path, 'w') do |file|
@@ -121,7 +121,7 @@ def load_wallets
           raise ArgumentError, 'Malformed encrypted seed data' if seed_data['iv'] == '' ||
                                                                   seed_data['auth_tag'] == ''
 
-          cipher = OpenSSL::Cipher::AES256.new(:GCM).decrypt
+          cipher = OpenSSL::Cipher.new('aes-256-gcm').decrypt
           cipher.key = OpenSSL::Digest.digest('SHA256', shared_secret)
           iv = [seed_data['iv']].pack('H*')
           cipher.iv = iv
@@ -176,6 +176,5 @@ def store_encryption_key
       public_key = pk.public_key # use own public key to generate the shared secret.
       pk.dh_compute_key(public_key)
     end
-
   end
 end
diff --git a/lib/coinbase/wallet.rb b/lib/coinbase/wallet.rb
index 76af2cae..f44ae34f 100644
--- a/lib/coinbase/wallet.rb
+++ b/lib/coinbase/wallet.rb
@@ -164,8 +164,8 @@ def export
     # Returns a String representation of the Wallet.
     # @return [String] a String representation of the Wallet
     def to_s
-      "Coinbase::Wallet{wallet_id: '#{wallet_id}', network_id: '#{network_id}', " +
-      "default_address: '#{default_address.address_id}'}"
+      "Coinbase::Wallet{wallet_id: '#{wallet_id}', network_id: '#{network_id}', " \
+        "default_address: '#{default_address.address_id}'}"
     end
 
     # Same as to_s.
diff --git a/spec/unit/coinbase/user_spec.rb b/spec/unit/coinbase/user_spec.rb
index 0ee9fc86..9197ec90 100644
--- a/spec/unit/coinbase/user_spec.rb
+++ b/spec/unit/coinbase/user_spec.rb
@@ -148,14 +148,14 @@
                                     })
     end
     let(:initial_seed_data) { JSON.pretty_generate({}) }
-    let(:expected_seed_data) {
+    let(:expected_seed_data) do
       {
         seed_wallet.wallet_id => {
           seed: seed,
           encrypted: false
         }
       }
-    }
+    end
 
     before do
       allow(Coinbase::Client::AddressesApi).to receive(:new).and_return(addresses_api)
@@ -250,28 +250,28 @@
     let(:address_list_model) do
       Coinbase::Client::AddressList.new({ 'data' => [address_model], 'total_count' => 1 })
     end
-    let(:initial_seed_data) {
+    let(:initial_seed_data) do
       {
         wallet_id => {
           seed: seed,
           encrypted: false
         }
       }
-    }
-    let(:malformed_seed_data) {
+    end
+    let(:malformed_seed_data) do
       {
         wallet_id => 'test'
       }
-    }
-    let(:seed_data_without_seed) {
+    end
+    let(:seed_data_without_seed) do
       {
         wallet_id => {
           seed: '',
           encrypted: false
         }
       }
-    }
-    let(:seed_data_without_iv) {
+    end
+    let(:seed_data_without_iv) do
       {
         wallet_id => {
           seed: seed,
@@ -280,8 +280,8 @@
           auth_tag: '0x111'
         }
       }
-    }
-    let(:seed_data_without_auth_tag) {
+    end
+    let(:seed_data_without_auth_tag) do
       {
         wallet_id => {
           seed: seed,
@@ -290,7 +290,7 @@
           auth_tag: ''
         }
       }
-    }
+    end
 
     before do
       File.open(Coinbase.configuration.backup_file_path, 'w') do |file|