diff --git a/Gemfile.lock b/Gemfile.lock
index cfcfc3f..e2931a2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -157,10 +157,11 @@ GEM
       mini_mime (>= 0.1.1)
     method_source (0.8.2)
     mini_mime (1.0.0)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.8.0)
     minitest (5.11.3)
-    nokogiri (1.8.2)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.13.9)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     orm_adapter (0.5.0)
     polyamorous (1.3.3)
       activerecord (>= 3.0)
@@ -173,6 +174,7 @@ GEM
     public_suffix (3.0.2)
     quiet_assets (1.1.0)
       railties (>= 3.1, < 5.0)
+    racc (1.6.0)
     rack (1.6.9)
     rack-test (0.6.3)
       rack (>= 1.0)