diff --git a/Gemfile.lock b/Gemfile.lock
index 5e37b84..7bcd8b5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -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 (4.3.0)
       activesupport (>= 4.2.0)
     simple_form (4.0.0)
       actionpack (> 4)