diff --git a/Gemfile.lock b/Gemfile.lock
index 5b6d6c9..984f04f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -22,13 +22,15 @@ GEM
       multipart-post (~> 1.2.0)
     ffi (1.9.14)
     i18n (0.6.0)
-    mini_portile2 (2.2.0)
+    mini_portile2 (2.8.0)
     multi_json (1.12.2)
     multipart-post (1.2.0)
-    nokogiri (1.8.0)
-      mini_portile2 (~> 2.2.0)
+    nokogiri (1.13.9)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     pygments.rb (1.2.0)
       multi_json (>= 1.0.0)
+    racc (1.6.0)
     rake (0.9.2.2)
     redcarpet (1.17.2)
     retriable (3.1.1)
@@ -55,7 +57,7 @@ DEPENDENCIES
   awesome_print (~> 1.0.1)
   bundler (>= 1.0.0)
   faker (~> 0.9.5)
-  nokogiri (~> 1.8.0)
+  nokogiri (~> 1.13.9)
   pygments.rb (~> 1.2.0)
   rake (~> 0.9.2.2)
   redcarpet (~> 1.17.2)
diff --git a/thrillcall-api.gemspec b/thrillcall-api.gemspec
index 2132ea2..5749153 100644
--- a/thrillcall-api.gemspec
+++ b/thrillcall-api.gemspec
@@ -23,7 +23,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency  "autotest-fsevent",       "~> 0.2.12"
   s.add_development_dependency  "awesome_print",          "~> 1.0.1"
   s.add_development_dependency  "redcarpet",              "~> 1.17.2"
-  s.add_development_dependency  "nokogiri",               "~> 1.8.0"
+  s.add_development_dependency  "nokogiri",               "~> 1.13.9"
   s.add_development_dependency  "pygments.rb",            "~> 1.2.0"
   s.add_development_dependency  "faker",                  "~> 0.9.5"
   s.add_development_dependency  "tzinfo",                 "~> 0.3.31"