diff --git a/Gemfile.lock b/Gemfile.lock
index 865c3c6..ee26496 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -99,7 +99,7 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.12.2)
-    concurrent-ruby (1.1.3)
+    concurrent-ruby (1.1.6)
     crass (1.0.4)
     database_cleaner (1.7.0)
     datetime_picker_rails (0.0.7)
@@ -146,7 +146,7 @@ GEM
     formatador (0.2.5)
     globalid (0.4.1)
       activesupport (>= 4.2.0)
-    i18n (1.1.1)
+    i18n (1.8.3)
       concurrent-ruby (~> 1.0)
     ipaddress (0.8.3)
     jaro_winkler (1.5.2)
@@ -187,7 +187,7 @@ GEM
     mimemagic (0.3.2)
     mini_mime (1.0.1)
     mini_portile2 (2.4.0)
-    minitest (5.11.3)
+    minitest (5.14.1)
     momentjs-rails (2.20.1)
       railties (>= 3.1)
     multi_json (1.13.1)
@@ -298,12 +298,12 @@ GEM
       tilt (>= 1.1, < 3)
     selectize-rails (0.12.5)
     sexp_processor (4.11.0)
-    shoulda (3.5.0)
-      shoulda-context (~> 1.0, >= 1.0.1)
-      shoulda-matchers (>= 1.4.1, < 3.0)
-    shoulda-context (1.2.2)
-    shoulda-matchers (2.8.0)
-      activesupport (>= 3.0.0)
+    shoulda (4.0.0)
+      shoulda-context (~> 2.0)
+      shoulda-matchers (~> 4.0)
+    shoulda-context (2.0.0)
+    shoulda-matchers (4.3.0)
+      activesupport (>= 4.2.0)
     simple_form (4.1.0)
       actionpack (>= 5.0)
       activemodel (>= 5.0)
@@ -323,7 +323,7 @@ GEM
     thor (0.20.3)
     thread_safe (0.3.6)
     tilt (2.0.8)
-    tzinfo (1.2.5)
+    tzinfo (1.2.7)
       thread_safe (~> 0.1)
     uglifier (4.1.20)
       execjs (>= 0.3.0, < 3)