diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 784213b..19c7dc6 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -8,12 +8,15 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: [3.1, 3.2, 3.3]
+        ruby: [3.1, 3.2, 3.3, 3.4]
         gemfile:
-        - gemfiles/rails_6_0.gemfile
-        - gemfiles/rails_6_1.gemfile
         - gemfiles/rails_7_0.gemfile
         - gemfiles/rails_7_1.gemfile
+        - gemfiles/rails_7_2.gemfile
+        - gemfiles/rails_8_0.gemfile
+        exclude:
+        - ruby: 3.1
+          gemfile: gemfiles/rails_8_0.gemfile
     env:
       BUNDLE_GEMFILE: ${{ matrix.gemfile }}
     steps:
diff --git a/Appraisals b/Appraisals
index df4ec91..cf92af9 100644
--- a/Appraisals
+++ b/Appraisals
@@ -2,6 +2,10 @@
 
 require 'appraisal/matrix'
 
-appraisal_matrix(rails: "6.0") do
-  gem 'sqlite3', '~> 1.4'
+appraisal_matrix(rails: "7.0") do |rails:|
+  if rails <= "7.0"
+    gem 'sqlite3', '~> 1.4'
+  else
+    gem 'sqlite3'
+  end
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index 2f74c27..0dcb3ab 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -86,7 +86,7 @@ GEM
       bundler
       rake
       thor (>= 0.14.0)
-    appraisal-matrix (0.1.0)
+    appraisal-matrix (0.3.0)
       appraisal (~> 2.2)
     base64 (0.2.0)
     bigdecimal (3.1.8)
@@ -193,7 +193,7 @@ GEM
     sqlite3 (1.7.3-x86_64-darwin)
     sqlite3 (1.7.3-x86_64-linux)
     stringio (3.1.1)
-    thor (1.3.1)
+    thor (1.3.2)
     timeout (0.4.1)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
diff --git a/gemfiles/rails_6_0.gemfile b/gemfiles/rails_6_0.gemfile
deleted file mode 100644
index 5b78cf0..0000000
--- a/gemfiles/rails_6_0.gemfile
+++ /dev/null
@@ -1,18 +0,0 @@
-# This file was generated by Appraisal
-
-source "https://rubygems.org"
-
-gem "appraisal"
-gem "appraisal-matrix"
-gem "pry"
-gem "rake"
-gem "sqlite3", "~> 1.4"
-gem "minitest"
-gem "minitest-reporters"
-gem "concurrent-ruby", "~> 1.3", "< 1.3.5"
-gem "base64", ">= 0.2.0"
-gem "bigdecimal", ">= 3.1"
-gem "mutex_m", ">= 0.2.0"
-gem "rails", "~> 6.0.0"
-
-gemspec path: "../"
diff --git a/gemfiles/rails_6_1.gemfile b/gemfiles/rails_6_1.gemfile
deleted file mode 100644
index 41f49cb..0000000
--- a/gemfiles/rails_6_1.gemfile
+++ /dev/null
@@ -1,18 +0,0 @@
-# This file was generated by Appraisal
-
-source "https://rubygems.org"
-
-gem "appraisal"
-gem "appraisal-matrix"
-gem "pry"
-gem "rake"
-gem "sqlite3", "~> 1.4"
-gem "minitest"
-gem "minitest-reporters"
-gem "concurrent-ruby", "~> 1.3", "< 1.3.5"
-gem "base64", ">= 0.2.0"
-gem "bigdecimal", ">= 3.1"
-gem "mutex_m", ">= 0.2.0"
-gem "rails", "~> 6.1.0"
-
-gemspec path: "../"
diff --git a/gemfiles/rails_7_1.gemfile b/gemfiles/rails_7_1.gemfile
index f88f1f2..a43282f 100644
--- a/gemfiles/rails_7_1.gemfile
+++ b/gemfiles/rails_7_1.gemfile
@@ -6,7 +6,7 @@ gem "appraisal"
 gem "appraisal-matrix"
 gem "pry"
 gem "rake"
-gem "sqlite3", "~> 1.4"
+gem "sqlite3"
 gem "minitest"
 gem "minitest-reporters"
 gem "concurrent-ruby", "~> 1.3", "< 1.3.5"
diff --git a/gemfiles/rails_7_2.gemfile b/gemfiles/rails_7_2.gemfile
index 85c22c1..f61340b 100644
--- a/gemfiles/rails_7_2.gemfile
+++ b/gemfiles/rails_7_2.gemfile
@@ -6,7 +6,7 @@ gem "appraisal"
 gem "appraisal-matrix"
 gem "pry"
 gem "rake"
-gem "sqlite3", "~> 1.4"
+gem "sqlite3"
 gem "minitest"
 gem "minitest-reporters"
 gem "concurrent-ruby", "~> 1.3", "< 1.3.5"
diff --git a/gemfiles/rails_8_0.gemfile b/gemfiles/rails_8_0.gemfile
index 647808a..4d983be 100644
--- a/gemfiles/rails_8_0.gemfile
+++ b/gemfiles/rails_8_0.gemfile
@@ -6,7 +6,7 @@ gem "appraisal"
 gem "appraisal-matrix"
 gem "pry"
 gem "rake"
-gem "sqlite3", "~> 1.4"
+gem "sqlite3"
 gem "minitest"
 gem "minitest-reporters"
 gem "concurrent-ruby", "~> 1.3", "< 1.3.5"