diff --git a/Gemfile b/Gemfile
index b2b034d..933b2b7 100644
--- a/Gemfile
+++ b/Gemfile
@@ -12,7 +12,7 @@ group :development, :test do
   gem 'rspec', '~> 3.0'
   gem 'rubocop', '~> 1.55'
   gem 'rubocop-rspec', '~> 2.23'
-  gem 'timecop', '~> 0.8'
+  gem 'timecop', '~> 0.9'
   gem 'vcr', '~> 5.0'
   gem 'webmock', '~> 3.3'
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index f2c4504..adaf668 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -211,7 +211,7 @@ GEM
     systemu (2.6.5)
     terminal-table (3.0.2)
       unicode-display_width (>= 1.1.1, < 3)
-    timecop (0.9.6)
+    timecop (0.9.8)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
     unf (0.1.4)
@@ -241,7 +241,7 @@ DEPENDENCIES
   rspec (~> 3.0)
   rubocop (~> 1.55)
   rubocop-rspec (~> 2.23)
-  timecop (~> 0.8)
+  timecop (~> 0.9)
   vcr (~> 5.0)
   webmock (~> 3.3)