diff --git a/sample_app/Gemfile.lock b/sample_app/Gemfile.lock
index 54b6f2ba..2b41fbc9 100644
--- a/sample_app/Gemfile.lock
+++ b/sample_app/Gemfile.lock
@@ -75,17 +75,19 @@ GEM
       treetop (~> 1.4.8)
     method_source (0.8.1)
     mime-types (1.23)
-    mini_portile (0.5.1)
+    mini_portile2 (2.8.0)
     multi_json (1.7.7)
     multi_test (0.0.1)
-    nokogiri (1.6.0)
-      mini_portile (~> 0.5.0)
+    nokogiri (1.13.6)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     pg (0.15.1)
     polyglot (0.3.3)
     pry (0.9.12.2)
       coderay (~> 1.0.5)
       method_source (~> 0.8)
       slop (~> 3.4)
+    racc (1.6.0)
     rack (1.4.5)
     rack-cache (1.2)
       rack (>= 0.4)