diff --git a/rails-material/Gemfile.lock b/rails-material/Gemfile.lock
index 7920fd7..c34914d 100644
--- a/rails-material/Gemfile.lock
+++ b/rails-material/Gemfile.lock
@@ -151,7 +151,7 @@ GEM
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
     mini_mime (0.1.4)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.8.0)
     minitest (5.10.3)
     momentjs-rails (2.20.1)
       railties (>= 3.1)
@@ -160,10 +160,11 @@ GEM
     multipart-post (2.0.0)
     netrc (0.11.0)
     nio4r (2.1.0)
-    nokogiri (1.8.1)
-      mini_portile2 (~> 2.3.0)
-    nokogiri (1.8.1-x86-mingw32)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.13.6)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
+    nokogiri (1.13.6-x86-mingw32)
+      racc (~> 1.4)
     normalize-rails (4.1.1)
     oauth2 (1.4.0)
       faraday (>= 0.8, < 0.13)
@@ -185,6 +186,7 @@ GEM
     orm_adapter (0.5.0)
     public_suffix (3.0.0)
     puma (3.10.0)
+    racc (1.6.0)
     rack (2.0.3)
     rack-test (0.7.0)
       rack (>= 1.0, < 3)