diff --git a/Gemfile.lock b/Gemfile.lock
index 9090997..b02fba3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -78,7 +78,7 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.12.2)
-    concurrent-ruby (1.1.6)
+    concurrent-ruby (1.1.7)
     crack (0.4.3)
       safe_yaml (~> 1.0.0)
     crass (1.0.6)
@@ -137,7 +137,7 @@ GEM
     method_source (0.9.2)
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
-    minitest (5.14.0)
+    minitest (5.14.3)
     multipart-post (2.1.1)
     neat (1.7.4)
       bourbon (>= 4.0)
@@ -222,7 +222,7 @@ GEM
       sprockets (>= 2.8, < 4.0)
       sprockets-rails (>= 2.0, < 4.0)
       tilt (>= 1.1, < 3)
-    shoulda-matchers (4.1.2)
+    shoulda-matchers (4.5.0)
       activesupport (>= 4.2.0)
     simple_form (4.0.0)
       actionpack (> 4)
@@ -253,7 +253,7 @@ GEM
     title (0.0.7)
       i18n
       rails (>= 3.1)
-    tzinfo (1.2.6)
+    tzinfo (1.2.9)
       thread_safe (~> 0.1)
     uglifier (4.1.20)
       execjs (>= 0.3.0, < 3)