diff --git a/sample_app/Gemfile.lock b/sample_app/Gemfile.lock
index fc6bd39..b8bae03 100644
--- a/sample_app/Gemfile.lock
+++ b/sample_app/Gemfile.lock
@@ -77,7 +77,7 @@ GEM
       deep_merge (~> 1.2.1)
       dry-validation (>= 0.10.4)
     connection_pool (2.2.2)
-    crass (1.0.4)
+    crass (1.0.5)
     deep_merge (1.2.1)
     domain_name (0.5.20180417)
       unf (>= 0.0.5, < 1.0.0)
@@ -304,7 +304,7 @@ GEM
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
       ruby_dep (~> 1.2)
-    loofah (2.2.2)
+    loofah (2.4.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.0)
@@ -318,14 +318,14 @@ GEM
     mimemagic (0.3.2)
     mini_magick (4.8.0)
     mini_mime (1.0.0)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.4.0)
     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 (1.10.7)
+      mini_portile2 (~> 2.4.0)
     ovirt-engine-sdk (4.2.4)
       json (>= 1, < 3)
     parallel (1.12.1)