diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 6d13be3..559a52e 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -13,6 +13,9 @@ updates:
     cooldown:
       default-days: 5
     open-pull-requests-limit: 10
+    ignore:
+      - dependency-name: json
+        versions: ">= 3.0.0" # TODO: remove when a Rails release includes rails/rails#58601
   - package-ecosystem: npm
     directory: "/"
     schedule:
diff --git a/Appraisals b/Appraisals
index c0c2d07..6b59772 100644
--- a/Appraisals
+++ b/Appraisals
@@ -1,5 +1,7 @@
 # frozen_string_literal: true
 
+gem 'json', '< 3.0' # TODO: relax this constraint when rails/rails#58601 will be released
+
 appraise 'csv-25.0' do
   gem 'client_side_validations', '~> 25.0'
 end
diff --git a/Gemfile b/Gemfile
index 27de8bd..5743c3c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,6 +4,8 @@ source 'https://rubygems.org'
 
 gemspec
 
+gem 'json', '< 3.0' # TODO: relax this constraint when rails/rails#58601 will be released
+
 gem 'appraisal2'
 gem 'byebug'
 gem 'm'
diff --git a/gemfiles/csv_25.0.gemfile b/gemfiles/csv_25.0.gemfile
index bfa351c..547d1a9 100644
--- a/gemfiles/csv_25.0.gemfile
+++ b/gemfiles/csv_25.0.gemfile
@@ -2,6 +2,7 @@
 
 source "https://rubygems.org"
 
+gem "json", "< 3.0"
 gem "appraisal2"
 gem "byebug"
 gem "m"
diff --git a/gemfiles/csv_edge.gemfile b/gemfiles/csv_edge.gemfile
index 1288d15..d4e236c 100644
--- a/gemfiles/csv_edge.gemfile
+++ b/gemfiles/csv_edge.gemfile
@@ -2,6 +2,7 @@
 
 source "https://rubygems.org"
 
+gem "json", "< 3.0"
 gem "appraisal2"
 gem "byebug"
 gem "m"