diff --git a/Gemfile.lock b/Gemfile.lock
index 828e808..5eb70c2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -36,13 +36,13 @@ GEM
       addressable (>= 2.3.1)
       extlib (>= 0.9.15)
       multi_json (>= 1.0.0)
-    better_errors (2.1.1)
+    better_errors (2.9.1)
       coderay (>= 1.0.0)
-      erubis (>= 2.6.6)
+      erubi (>= 1.0.0)
       rack (>= 0.9.0)
     builder (3.2.2)
     chunky_png (1.3.8)
-    coderay (1.1.1)
+    coderay (1.1.3)
     coffee-rails (4.0.1)
       coffee-script (>= 2.2.0)
       railties (>= 4.0.0, < 5.0)
@@ -66,6 +66,7 @@ GEM
       compass (~> 1.0.0)
       sass-rails (< 5.1)
       sprockets (< 2.13)
+    erubi (1.10.0)
     erubis (2.7.0)
     execjs (2.2.1)
     extlib (0.9.16)
@@ -127,7 +128,7 @@ GEM
     public_suffix (2.0.5)
     quiet_assets (1.1.0)
       railties (>= 3.1, < 5.0)
-    rack (1.5.2)
+    rack (1.5.5)
     rack-test (0.6.2)
       rack (>= 1.0)
     rails (4.1.8)