diff --git a/Gemfile.lock b/Gemfile.lock
index f615c34..ff04602 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -10,7 +10,7 @@ GEM
     addressable (2.7.0)
       public_suffix (>= 2.0.2, < 5.0)
     ansi (1.5.0)
-    ast (2.4.1)
+    ast (2.4.2)
     awesome_print (1.8.0)
     byebug (11.1.1)
     coderay (1.1.2)
@@ -28,8 +28,8 @@ GEM
     json_schema (0.20.8)
     method_source (1.0.0)
     multipart-post (2.1.1)
-    parallel (1.19.2)
-    parser (2.7.1.4)
+    parallel (1.20.1)
+    parser (3.0.1.1)
       ast (~> 2.4.1)
     pry (0.13.0)
       coderay (~> 1.1)
@@ -40,8 +40,8 @@ GEM
     public_suffix (4.0.6)
     rainbow (3.0.0)
     rake (13.0.1)
-    regexp_parser (1.7.1)
-    rexml (3.2.4)
+    regexp_parser (2.1.1)
+    rexml (3.2.5)
     rspec (3.10.0)
       rspec-core (~> 3.10.0)
       rspec-expectations (~> 3.10.0)
@@ -55,20 +55,20 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.10.0)
     rspec-support (3.10.0)
-    rubocop (0.88.0)
+    rubocop (1.18.3)
       parallel (~> 1.10)
-      parser (>= 2.7.1.1)
+      parser (>= 3.0.0.0)
       rainbow (>= 2.2.2, < 4.0)
-      regexp_parser (>= 1.7)
+      regexp_parser (>= 1.8, < 3.0)
       rexml
-      rubocop-ast (>= 0.1.0, < 1.0)
+      rubocop-ast (>= 1.7.0, < 2.0)
       ruby-progressbar (~> 1.7)
-      unicode-display_width (>= 1.4.0, < 2.0)
-    rubocop-ast (0.2.0)
-      parser (>= 2.7.0.1)
+      unicode-display_width (>= 1.4.0, < 3.0)
+    rubocop-ast (1.7.0)
+      parser (>= 3.0.1.1)
     rubocop-performance (1.7.1)
       rubocop (>= 0.82.0)
-    ruby-progressbar (1.10.1)
+    ruby-progressbar (1.11.0)
     simplecov (0.19.1)
       docile (~> 1.1)
       simplecov-html (~> 0.11)