diff --git a/Gemfile.lock b/Gemfile.lock
index 2b2c6d6..ddd81ce 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -176,7 +176,7 @@ GEM
     mime-types-data (3.2019.0331)
     mini_magick (4.5.1)
     mini_mime (1.0.1)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.8.5)
     minitest (5.11.3)
     multi_json (1.13.1)
     multi_xml (0.6.0)
@@ -184,12 +184,14 @@ GEM
     nanaimo (0.2.6)
     naturally (2.2.0)
     nio4r (2.3.1)
-    nokogiri (1.10.4)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.15.6)
+      mini_portile2 (~> 2.8.2)
+      racc (~> 1.4)
     os (1.0.1)
     plist (3.5.0)
     public_suffix (2.0.5)
     puma (3.12.1)
+    racc (1.7.3)
     rack (2.0.7)
     rack-test (0.6.3)
       rack (>= 1.0)