diff --git a/Gemfile.lock b/Gemfile.lock
index 4369a5b..23bdda8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -35,7 +35,7 @@ GEM
     minitest (4.7.5)
     multi_json (1.10.1)
     pg (0.17.1)
-    rake (0.9.2.2)
+    rake (13.0.6)
     rdoc (3.12)
       json (~> 1.4)
     rspec (2.5.0)
@@ -46,7 +46,6 @@ GEM
     rspec-expectations (2.5.0)
       diff-lcs (~> 1.1.2)
     rspec-mocks (2.5.0)
-    sqlite3 (1.3.11)
     thor (0.20.3)
     thread_safe (0.3.4)
     tzinfo (0.3.42)
@@ -61,10 +60,9 @@ DEPENDENCIES
   i18n
   iconv (~> 1.0.4)
   pg (~> 0.17.1)
-  rake (< 11)
+  rake (< 14)
   rdoc (~> 3.12)
   rspec (~> 2.0)
-  sqlite3 (~> 1.3.4)
   validates_lengths_from_database!
 
 BUNDLED WITH
diff --git a/validates_lengths_from_database.gemspec b/validates_lengths_from_database.gemspec
index 40bba3a..032cd2b 100644
--- a/validates_lengths_from_database.gemspec
+++ b/validates_lengths_from_database.gemspec
@@ -27,7 +27,7 @@ Gem::Specification.new do |s|
 
   # rspec 2 relies rake < 11 for the `last_comment` method
   # https://stackoverflow.com/a/35893625
-  s.add_development_dependency("rake", ["< 11"])
+  s.add_development_dependency("rake", "< 14")
 
   # I'm not sure why this isn't installed along with activesupport,
   # but for whatever reason running `bundle install` doesn't install