diff --git a/Gemfile.lock b/Gemfile.lock
index c85f203..2b0b998 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -3,21 +3,21 @@ 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)
-    rake (10.4.2)
+    json (1.8.6)
+    mini_portile2 (2.4.0)
+    nokogiri (1.10.8)
+      mini_portile2 (~> 2.4.0)
+    pg (0.18.4)
+    rake (13.0.1)
     rspec (3.2.0)
       rspec-core (~> 3.2.0)
       rspec-expectations (~> 3.2.0)
diff --git a/postgres_to_redshift.gemspec b/postgres_to_redshift.gemspec
index 88ac1a9..a4ace5e 100644
--- a/postgres_to_redshift.gemspec
+++ b/postgres_to_redshift.gemspec
@@ -19,7 +19,7 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
 
   spec.add_development_dependency "bundler", "~> 1.6"
-  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "rake", "~> 13.0"
   spec.add_dependency "pg", "~> 0.18.0"
   spec.add_dependency "aws-sdk-v1", "~> 1.54"
 end