diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c4cd1d7..0d072f2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,8 +13,6 @@ jobs:
       matrix:
         ruby:
           - '3.1'
-          - '3.0'
-          - '2.7'
 
     steps:
       - name: Checkout
diff --git a/devise-otp.gemspec b/devise-otp.gemspec
index 0f307d9..f2146d9 100644
--- a/devise-otp.gemspec
+++ b/devise-otp.gemspec
@@ -25,6 +25,6 @@ Gem::Specification.new do |gem|
   gem.add_development_dependency "rdoc"
   gem.add_development_dependency "shoulda"
   gem.add_development_dependency "sprockets-rails"
-  gem.add_development_dependency "sqlite3"
+  gem.add_development_dependency "sqlite3", "~> 1.4"
   gem.add_development_dependency "standardrb"
 end