diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 46e7533..8505604 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -8,7 +8,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: ['2.6', '2.7', '3.0', '3.1', '3.2']
+        ruby: ['2.7', '3.0', '3.1', '3.2']
         gemfile:
           - gemfiles/rails_5_2.gemfile
           - gemfiles/rails_6_0.gemfile
diff --git a/Gemfile b/Gemfile
index 509ad67..2848b1e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -11,6 +11,6 @@ gem 'mysql2'
 gem 'pg'
 gem 'rake'
 gem 'rspec'
-gem 'sqlite3'
+gem 'sqlite3', '~> 1.7.3'
 gem 'timecop'
 gem 'zeitwerk'
diff --git a/Gemfile.lock b/Gemfile.lock
index 3d2aa2e..f5e0eb1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -216,7 +216,7 @@ DEPENDENCIES
   pg
   rake
   rspec
-  sqlite3
+  sqlite3 (~> 1.7.3)
   timecop
   zeitwerk
 
diff --git a/gemfiles/rails_5_2.gemfile b/gemfiles/rails_5_2.gemfile
index da3da84..55b092b 100644
--- a/gemfiles/rails_5_2.gemfile
+++ b/gemfiles/rails_5_2.gemfile
@@ -11,7 +11,7 @@ gem "mysql2"
 gem "pg"
 gem "rake"
 gem "rspec"
-gem "sqlite3"
+gem "sqlite3", "~> 1.7.3"
 gem "timecop"
 gem "zeitwerk"
 
diff --git a/gemfiles/rails_6_0.gemfile b/gemfiles/rails_6_0.gemfile
index bff971b..d6bea62 100644
--- a/gemfiles/rails_6_0.gemfile
+++ b/gemfiles/rails_6_0.gemfile
@@ -11,7 +11,7 @@ gem "mysql2"
 gem "pg"
 gem "rake"
 gem "rspec"
-gem "sqlite3"
+gem "sqlite3", "~> 1.7.3"
 gem "timecop"
 gem "zeitwerk"
 
diff --git a/gemfiles/rails_6_1.gemfile b/gemfiles/rails_6_1.gemfile
index b6a5973..6d6f507 100644
--- a/gemfiles/rails_6_1.gemfile
+++ b/gemfiles/rails_6_1.gemfile
@@ -11,7 +11,7 @@ gem "mysql2"
 gem "pg"
 gem "rake"
 gem "rspec"
-gem "sqlite3"
+gem "sqlite3", "~> 1.7.3"
 gem "timecop"
 gem "zeitwerk"
 
diff --git a/gemfiles/rails_7_0.gemfile b/gemfiles/rails_7_0.gemfile
index 3005521..5c98e89 100644
--- a/gemfiles/rails_7_0.gemfile
+++ b/gemfiles/rails_7_0.gemfile
@@ -11,7 +11,7 @@ gem "mysql2"
 gem "pg"
 gem "rake"
 gem "rspec"
-gem "sqlite3"
+gem "sqlite3", "~> 1.7.3"
 gem "timecop"
 gem "zeitwerk"
 
diff --git a/gemfiles/rails_7_1.gemfile b/gemfiles/rails_7_1.gemfile
index b1431c0..f15f0eb 100644
--- a/gemfiles/rails_7_1.gemfile
+++ b/gemfiles/rails_7_1.gemfile
@@ -11,7 +11,7 @@ gem "mysql2"
 gem "pg"
 gem "rake"
 gem "rspec"
-gem "sqlite3"
+gem "sqlite3", "~> 1.7.3"
 gem "timecop"
 gem "zeitwerk"
 
diff --git a/gemfiles/rails_main.gemfile b/gemfiles/rails_main.gemfile
index 4fcdd25..7742de2 100644
--- a/gemfiles/rails_main.gemfile
+++ b/gemfiles/rails_main.gemfile
@@ -11,7 +11,7 @@ gem "mysql2"
 gem "pg"
 gem "rake"
 gem "rspec"
-gem "sqlite3"
+gem "sqlite3", "~> 1.7.3"
 gem "timecop"
 gem "zeitwerk"
 gem "actionview", github: "rails/rails", glob: "actionview/*.gemspec"