diff --git a/Gemfile.lock b/Gemfile.lock
index 93503dc..3bf2172 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -65,7 +65,7 @@ GEM
     childprocess (0.9.0)
       ffi (~> 1.0, >= 1.0.11)
     coderay (1.1.2)
-    concurrent-ruby (1.0.5)
+    concurrent-ruby (1.1.3)
     crack (0.4.3)
       safe_yaml (~> 1.0.0)
     crass (1.0.4)
@@ -223,7 +223,7 @@ GEM
       rubyzip (~> 1.2, >= 1.2.2)
     shoulda-matchers (3.1.2)
       activesupport (>= 4.0.0)
-    simple_form (4.0.1)
+    simple_form (4.1.0)
       actionpack (>= 5.0)
       activemodel (>= 5.0)
     sprockets (3.7.2)