diff --git a/Gemfile.lock b/Gemfile.lock
index 0d44f286..8d1ff755 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -5,7 +5,7 @@ PATH
       addressable (~> 2.5)
       color_echo (~> 3.1)
       json (~> 2.3.0)
-      nokogiri (~> 1.11.1)
+      nokogiri (>= 1.11.1, < 1.13.0)
       parallel (~> 1.11)
       ruby-mysql (~> 2.9)
       selenium-webdriver (~> 3.142)
@@ -15,7 +15,7 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.7.0)
+    addressable (2.8.0)
       public_suffix (>= 2.0.2, < 5.0)
     ansi (1.5.0)
     ast (2.4.1)
@@ -33,14 +33,14 @@ GEM
     jaro_winkler (1.5.4)
     json (2.3.1)
     method_source (1.0.0)
-    mini_portile2 (2.5.0)
-    nokogiri (1.11.1)
-      mini_portile2 (~> 2.5.0)
+    mini_portile2 (2.6.1)
+    nokogiri (1.12.5)
+      mini_portile2 (~> 2.6.1)
       racc (~> 1.4)
     parallel (1.20.1)
     parser (3.0.0.0)
       ast (~> 2.4.1)
-    power_assert (1.2.0)
+    power_assert (2.0.1)
     pry (0.13.1)
       coderay (~> 1.1)
       method_source (~> 1.0)
@@ -78,7 +78,7 @@ GEM
       unicode-display_width (>= 1.4.0, < 1.6)
     ruby-mysql (2.9.14)
     ruby-progressbar (1.11.0)
-    rubyzip (2.3.0)
+    rubyzip (2.3.2)
     selenium-webdriver (3.142.7)
       childprocess (>= 0.5, < 4.0)
       rubyzip (>= 1.2.2)
@@ -92,7 +92,7 @@ GEM
       hirb
       simplecov
     simplecov-html (0.10.2)
-    test-unit (3.3.9)
+    test-unit (3.4.7)
       power_assert
     unicode-display_width (1.5.0)
 
diff --git a/bucky-core.gemspec b/bucky-core.gemspec
index d362fe59..9397948a 100644
--- a/bucky-core.gemspec
+++ b/bucky-core.gemspec
@@ -43,7 +43,7 @@ Gem::Specification.new do |spec|
   spec.add_runtime_dependency 'addressable', '~> 2.5'
   spec.add_runtime_dependency 'color_echo',         '~> 3.1'
   spec.add_runtime_dependency 'json',               '~> 2.3.0'
-  spec.add_runtime_dependency 'nokogiri',           '~> 1.11.1'
+  spec.add_runtime_dependency 'nokogiri',           '>= 1.11.1', '< 1.13.0'
   spec.add_runtime_dependency 'parallel',           '~> 1.11'
   spec.add_runtime_dependency 'ruby-mysql',         '~> 2.9'
   spec.add_runtime_dependency 'selenium-webdriver', '~> 3.142'