diff --git a/Gemfile.lock b/Gemfile.lock
index 8761c3b..3a53112 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -47,7 +47,7 @@ GEM
       rake (>= 10.4, < 14.0)
     arel (9.0.0)
     bcrypt (3.1.13)
-    better_errors (2.6.0)
+    better_errors (2.8.0)
       coderay (>= 1.0.0)
       erubi (>= 1.0.0)
       rack (>= 0.9.0)
@@ -61,7 +61,7 @@ GEM
       activesupport (>= 3.0.0)
       uniform_notifier (~> 1.11)
     byebug (11.1.1)
-    coderay (1.1.2)
+    coderay (1.1.3)
     coffee-rails (4.2.2)
       coffee-script (>= 2.2.0)
       railties (>= 4.0.0)
@@ -72,7 +72,7 @@ GEM
     concurrent-ruby (1.1.6)
     crass (1.0.6)
     debug_inspector (0.0.3)
-    erubi (1.9.0)
+    erubi (1.10.0)
     execjs (2.7.0)
     ffi (1.12.2)
     globalid (0.4.2)
@@ -112,7 +112,7 @@ GEM
     pry-rails (0.3.9)
       pry (>= 0.10.4)
     puma (3.12.4)
-    rack (2.2.2)
+    rack (2.2.3)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails (5.2.4.2)