diff --git a/Gemfile.lock b/Gemfile.lock
index 7d075bb..3ea89da 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -126,11 +126,12 @@ GEM
     middleman-syntax (3.0.0)
       middleman-core (>= 3.2)
       rouge (~> 2.0)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.5.3)
     minitest (5.14.1)
     multi_json (1.13.1)
-    nokogiri (1.10.9)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.11.7)
+      mini_portile2 (~> 2.5.0)
+      racc (~> 1.4)
     openapi3_parser (0.5.2)
       commonmarker (~> 0.17)
     padrino-helpers (0.13.3.4)
@@ -144,6 +145,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
     public_suffix (4.0.5)
+    racc (1.5.2)
     rack (2.2.3)
     rack-livereload (0.3.17)
       rack