diff --git a/Gemfile b/Gemfile
index f998197..2b12aad 100644
--- a/Gemfile
+++ b/Gemfile
@@ -26,5 +26,5 @@ group :development do
   gem 'rspec', '~> 3.12'
   gem 'simplecov', '~> 0.22.0'
   gem 'timecop', '~> 0.9.6'
-  gem 'yard', '~> 0.9.32'
+  gem 'yard', '~> 0.9.34'
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index 76fa4da..bcfde4b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -118,7 +118,7 @@ GEM
     unicorn (6.1.0)
       kgio (~> 2.6)
       raindrops (~> 0.7)
-    yard (0.9.32)
+    yard (0.9.34)
 
 PLATFORMS
   ruby
@@ -144,7 +144,7 @@ DEPENDENCIES
   thin (~> 1.8)
   timecop (~> 0.9.6)
   unicorn (~> 6.1)
-  yard (~> 0.9.32)
+  yard (~> 0.9.34)
 
 RUBY VERSION
    ruby 2.6.10p210