diff --git a/Gemfile.lock b/Gemfile.lock
index 599ffac..3289741 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -109,7 +109,7 @@ GEM
     http-form_data (2.1.1)
     http-parser (1.2.1)
       ffi-compiler (>= 1.0, < 2.0)
-    i18n (1.7.0)
+    i18n (1.8.1)
       concurrent-ruby (~> 1.0)
     io-like (0.3.0)
     jwt (1.5.6)
@@ -224,7 +224,7 @@ GEM
     selenium-webdriver (3.142.7)
       childprocess (>= 0.5, < 4.0)
       rubyzip (>= 1.2.2)
-    shoulda-matchers (4.1.2)
+    shoulda-matchers (4.2.0)
       activesupport (>= 4.2.0)
     simple_form (4.1.0)
       actionpack (>= 5.0)
@@ -239,7 +239,7 @@ GEM
     thor (1.0.1)
     thread_safe (0.3.6)
     tilt (2.0.8)
-    tzinfo (1.2.5)
+    tzinfo (1.2.6)
       thread_safe (~> 0.1)
     uglifier (4.1.20)
       execjs (>= 0.3.0, < 3)