diff --git a/Gemfile b/Gemfile
index 9142d7119..4e8feda58 100644
--- a/Gemfile
+++ b/Gemfile
@@ -13,7 +13,7 @@ group :test do
   gem "pry", "~> 0.16.0"
   gem "rack-test", "~> 2.2.0"
   gem "rspec", "~>3.13"
-  gem "timecop", "~> 0.9.10"
+  gem "timecop", "~> 0.9.11"
   gem "webmock", "~> 3.23"
   gem "wisper-rspec", "~> 1.0", ">= 1.0.1"
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index 14559cc9c..41d5cbfde 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -260,7 +260,7 @@ GEM
       hashie (>= 0.1.0, < 6)
       version_gem (>= 1.1.8, < 3)
     tilt (2.6.1)
-    timecop (0.9.10)
+    timecop (0.9.11)
     timeout (0.6.0)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
@@ -315,7 +315,7 @@ DEPENDENCIES
   sinatra-contrib
   sinatra-cross_origin (~> 0.4.0)
   slack-ruby-client
-  timecop (~> 0.9.10)
+  timecop (~> 0.9.11)
   unleash (~> 5.1.1)
   webmock (~> 3.23)
   wisper (~> 3.0.0)