diff --git a/Gemfile.lock b/Gemfile.lock
index 1ca9c8f..9ac1786 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -8,7 +8,7 @@ GEM
   specs:
     addressable (2.7.0)
       public_suffix (>= 2.0.2, < 5.0)
-    ast (2.4.0)
+    ast (2.4.1)
     backport (1.1.2)
     coderay (1.1.2)
     crack (0.4.3)
@@ -20,26 +20,28 @@ GEM
     docile (1.3.2)
     hashdiff (1.0.0)
     htmlentities (4.3.4)
-    jaro_winkler (1.5.3)
+    jaro_winkler (1.5.4)
     json (2.2.0)
     method_source (0.9.2)
     mini_portile2 (2.4.0)
     nokogiri (1.10.4)
       mini_portile2 (~> 2.4.0)
-    parallel (1.17.0)
-    parser (2.6.4.1)
-      ast (~> 2.4.0)
+    parallel (1.20.1)
+    parser (2.7.2.0)
+      ast (~> 2.4.1)
     pry (0.12.2)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
     public_suffix (4.0.1)
     rainbow (3.0.0)
     rake (12.3.3)
-    ramsey_cop (0.14.1)
-      rubocop (~> 0.62)
-      rubocop-performance
+    ramsey_cop (0.24.0)
+      rubocop (>= 0.82)
+      rubocop-performance (>= 1.5.2)
+    regexp_parser (2.0.1)
     reverse_markdown (1.3.0)
       nokogiri
+    rexml (3.2.4)
     rspec (3.8.0)
       rspec-core (~> 3.8.0)
       rspec-expectations (~> 3.8.0)
@@ -55,15 +57,20 @@ GEM
     rspec-support (3.8.2)
     rspec_junit_formatter (0.4.1)
       rspec-core (>= 2, < 4, != 2.12.0)
-    rubocop (0.74.0)
-      jaro_winkler (~> 1.5.1)
+    rubocop (0.93.1)
       parallel (~> 1.10)
-      parser (>= 2.6)
+      parser (>= 2.7.1.5)
       rainbow (>= 2.2.2, < 4.0)
+      regexp_parser (>= 1.8)
+      rexml
+      rubocop-ast (>= 0.6.0)
       ruby-progressbar (~> 1.7)
-      unicode-display_width (>= 1.4.0, < 1.7)
-    rubocop-performance (1.4.1)
-      rubocop (>= 0.71.0)
+      unicode-display_width (>= 1.4.0, < 2.0)
+    rubocop-ast (1.3.0)
+      parser (>= 2.7.1.5)
+    rubocop-performance (1.9.1)
+      rubocop (>= 0.90.0, < 2.0)
+      rubocop-ast (>= 0.4.0)
     ruby-debug-ide (0.7.0)
       rake (>= 0.8.1)
     ruby-progressbar (1.10.1)
@@ -87,7 +94,7 @@ GEM
       yard (~> 0.9)
     thor (0.20.3)
     tilt (2.0.9)
-    unicode-display_width (1.6.0)
+    unicode-display_width (1.7.0)
     webmock (3.7.2)
       addressable (>= 2.3.6)
       crack (>= 0.3.2)