diff --git a/.gitignore b/.gitignore
index f9893d0..3998bb6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,3 +16,4 @@ mkmf.log
 *swp
 .env
 .idea
+Dockerfile
diff --git a/Gemfile.lock b/Gemfile.lock
index c85f203..d62e325 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -3,20 +3,22 @@ PATH
   specs:
     postgres_to_redshift (0.1.2)
       aws-sdk-v1 (~> 1.54)
-      pg (~> 0.17.0)
+      pg (~> 0.18.0)
 
 GEM
   remote: https://rubygems.org/
   specs:
-    aws-sdk-v1 (1.66.0)
+    aws-sdk-v1 (1.67.0)
       json (~> 1.4)
-      nokogiri (>= 1.4.4)
+      nokogiri (~> 1)
     diff-lcs (1.2.5)
-    json (1.8.3)
-    mini_portile (0.6.2)
-    nokogiri (1.6.6.2)
-      mini_portile (~> 0.6.0)
-    pg (0.17.1)
+    json (1.8.6)
+    mini_portile2 (2.5.0)
+    nokogiri (1.11.1)
+      mini_portile2 (~> 2.5.0)
+      racc (~> 1.4)
+    pg (0.18.4)
+    racc (1.5.2)
     rake (10.4.2)
     rspec (3.2.0)
       rspec-core (~> 3.2.0)
@@ -42,4 +44,4 @@ DEPENDENCIES
   rspec
 
 BUNDLED WITH
-   1.10.5
+   1.17.3
diff --git a/lib/postgres_to_redshift.rb b/lib/postgres_to_redshift.rb
index 65c9251..6b6a5e8 100644
--- a/lib/postgres_to_redshift.rb
+++ b/lib/postgres_to_redshift.rb
@@ -1,7 +1,7 @@
 require "postgres_to_redshift/version"
 require 'pg'
 require 'uri'
-require 'aws-sdk-v1'
+require 'aws-sdk'
 require 'zlib'
 require 'tempfile'
 require "postgres_to_redshift/table"
@@ -131,7 +131,7 @@ def upload_table(table, buffer, chunk)
   def import_table(table)
     puts "Importing #{table.target_table_name}"
     schema = self.class.schema
-    
+
     target_connection.exec("DROP TABLE IF EXISTS #{schema}.#{table.target_table_name}_updating")
 
     target_connection.exec("BEGIN;")
diff --git a/postgres_to_redshift.gemspec b/postgres_to_redshift.gemspec
index 88ac1a9..c64e586 100644
--- a/postgres_to_redshift.gemspec
+++ b/postgres_to_redshift.gemspec
@@ -18,8 +18,8 @@ Gem::Specification.new do |spec|
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.require_paths = ["lib"]
 
-  spec.add_development_dependency "bundler", "~> 1.6"
-  spec.add_development_dependency "rake", "~> 10.0"
-  spec.add_dependency "pg", "~> 0.18.0"
-  spec.add_dependency "aws-sdk-v1", "~> 1.54"
+  spec.add_development_dependency "bundler", "~> 2.2"
+  spec.add_development_dependency "rake", "~> 13.0"
+  spec.add_dependency "pg", "~> 1.2.0"
+  spec.add_dependency "aws-sdk", "~> 3.0"
 end