diff --git a/Gemfile.lock b/Gemfile.lock
index 8d740cf..ff865ee 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -199,10 +199,6 @@ GEM
       tilt (>= 1.1, < 3)
     sdoc (1.0.0)
       rdoc (>= 5.0)
-    shoulda (3.6.0)
-      shoulda-context (~> 1.0, >= 1.0.1)
-      shoulda-matchers (~> 3.0)
-    shoulda-context (1.2.2)
     shoulda-matchers (3.1.2)
       activesupport (>= 4.0.0)
     simple_form (4.0.1)
@@ -250,7 +246,6 @@ DEPENDENCIES
   rspec-rails
   sass-rails
   sdoc
-  shoulda
   shoulda-matchers
   simple_form
   uglifier
@@ -259,4 +254,4 @@ RUBY VERSION
    ruby 2.5.1p57
 
 BUNDLED WITH
-   1.16.3
+   1.16.4