diff --git a/Gemfile.lock b/Gemfile.lock
index 8fb39a8..2be5de6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -45,11 +45,12 @@ GEM
     jaro_winkler (1.5.3)
     json (2.2.0)
     kramdown (1.17.0)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.8.0)
     minitest (5.11.3)
     multipart-post (2.1.1)
-    nokogiri (1.10.4)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.13.4)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     overcommit (0.49.0)
       childprocess (>= 0.6.3, < 2.0)
       iniparse (~> 1.4)
@@ -58,6 +59,7 @@ GEM
       ast (~> 2.4.0)
     plissken (1.3.0)
     public_suffix (3.1.1)
+    racc (1.6.0)
     rainbow (3.0.0)
     rake (10.5.0)
     reverse_markdown (1.1.0)