diff --git a/Gemfile.lock b/Gemfile.lock
index 8f08bc2..e70d729 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -6,31 +6,33 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    ast (2.4.1)
+    ast (2.4.2)
     bundler-audit (0.9.0.1)
       bundler (>= 1.2.0, < 3)
       thor (~> 1.0)
     docile (1.3.4)
+    json (2.6.3)
     minitest (5.15.0)
-    parallel (1.19.2)
-    parser (2.7.2.0)
+    parallel (1.22.1)
+    parser (3.2.0.0)
       ast (~> 2.4.1)
-    rainbow (3.0.0)
+    rainbow (3.1.1)
     rake (13.0.6)
-    regexp_parser (1.8.2)
+    regexp_parser (2.6.2)
     rexml (3.2.5)
-    rubocop (0.93.1)
+    rubocop (1.44.0)
+      json (~> 2.3)
       parallel (~> 1.10)
-      parser (>= 2.7.1.5)
+      parser (>= 3.2.0.0)
       rainbow (>= 2.2.2, < 4.0)
-      regexp_parser (>= 1.8)
-      rexml
-      rubocop-ast (>= 0.6.0)
+      regexp_parser (>= 1.8, < 3.0)
+      rexml (>= 3.2.5, < 4.0)
+      rubocop-ast (>= 1.24.1, < 2.0)
       ruby-progressbar (~> 1.7)
-      unicode-display_width (>= 1.4.0, < 2.0)
-    rubocop-ast (0.7.1)
-      parser (>= 2.7.1.5)
-    ruby-progressbar (1.10.1)
+      unicode-display_width (>= 2.4.0, < 3.0)
+    rubocop-ast (1.24.1)
+      parser (>= 3.1.1.0)
+    ruby-progressbar (1.11.0)
     simplecov (0.21.2)
       docile (~> 1.1)
       simplecov-html (~> 0.11)
@@ -38,7 +40,7 @@ GEM
     simplecov-html (0.12.3)
     simplecov_json_formatter (0.1.2)
     thor (1.1.0)
-    unicode-display_width (1.7.0)
+    unicode-display_width (2.4.2)
 
 PLATFORMS
   ruby
@@ -48,7 +50,7 @@ DEPENDENCIES
   bundler-audit (~> 0.6)
   minitest (~> 5.11)
   rake (~> 13.0)
-  rubocop (~> 0.72)
+  rubocop (~> 1.44)
   simplecov (~> 0.15)
   tiny_struct!
 
diff --git a/tiny_struct.gemspec b/tiny_struct.gemspec
index 6631836..bfcb299 100644
--- a/tiny_struct.gemspec
+++ b/tiny_struct.gemspec
@@ -25,6 +25,6 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'bundler-audit', '~> 0.6'
   spec.add_development_dependency 'minitest', '~> 5.11'
   spec.add_development_dependency 'rake', '~> 13.0'
-  spec.add_development_dependency 'rubocop', '~> 0.72'
+  spec.add_development_dependency 'rubocop', '~> 1.44'
   spec.add_development_dependency 'simplecov', '~> 0.15'
 end