diff --git a/Gemfile.lock b/Gemfile.lock
index fe9c155..faa0af2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,7 +2,7 @@ PATH
   remote: .
   specs:
     approvals (0.1.7)
-      json (~> 2.0)
+      json (>= 2, < 4)
       nokogiri (~> 1.8)
       thor (~> 1.0)
       zeitwerk (>= 2.7.2, < 2.9.0)
@@ -11,7 +11,7 @@ GEM
   remote: http://rubygems.org/
   specs:
     diff-lcs (1.6.2)
-    json (2.19.8)
+    json (3.0.2)
     mini_portile2 (2.8.9)
     nokogiri (1.19.3)
       mini_portile2 (~> 2.8.2)
diff --git a/approvals.gemspec b/approvals.gemspec
index c6a1d69..c553ec3 100644
--- a/approvals.gemspec
+++ b/approvals.gemspec
@@ -21,7 +21,7 @@ Gem::Specification.new do |s|
   s.require_paths = ["lib"]
 
   s.add_dependency 'thor', '~> 1.0'
-  s.add_dependency 'json', '~> 2.0'
+  s.add_dependency 'json', '>= 2', '< 4'
 
   s.add_dependency 'zeitwerk', '>= 2.7.2', '< 2.9.0'