diff --git a/sample_app/Gemfile.lock b/sample_app/Gemfile.lock
index fc6bd39..5a4340d 100644
--- a/sample_app/Gemfile.lock
+++ b/sample_app/Gemfile.lock
@@ -315,17 +315,20 @@ GEM
     mime-types (3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
-    mimemagic (0.3.2)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_magick (4.8.0)
     mini_mime (1.0.0)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.6.1)
     minitest (5.11.3)
     msgpack (1.2.4)
     multi_json (1.13.1)
     netrc (0.11.0)
     nio4r (2.3.1)
-    nokogiri (1.8.4)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.12.5)
+      mini_portile2 (~> 2.6.1)
+      racc (~> 1.4)
     ovirt-engine-sdk (4.2.4)
       json (>= 1, < 3)
     parallel (1.12.1)
@@ -334,6 +337,7 @@ GEM
     popper_js (1.12.9)
     powerpack (0.1.2)
     puma (3.11.4)
+    racc (1.5.2)
     rack (2.0.5)
     rack-protection (2.0.3)
       rack