diff --git a/Gemfile.lock b/Gemfile.lock
index 74bb3e8..e4b4fa5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -57,9 +57,9 @@ GEM
     babel-transpiler (0.7.0)
       babel-source (>= 4.0, < 6)
       execjs (~> 2.0)
-    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)
     binding_of_caller (0.7.2)
       debug_inspector (>= 0.0.1)
@@ -69,7 +69,7 @@ GEM
     buftok (0.2.0)
     builder (3.2.3)
     byebug (9.0.5)
-    coderay (1.1.1)
+    coderay (1.1.3)
     coffee-script-source (1.10.0)
     concurrent-ruby (1.0.5)
     connection_pool (2.2.0)
@@ -92,6 +92,7 @@ GEM
     ece (0.2.1)
       hkdf
     equalizer (0.0.10)
+    erubi (1.10.0)
     erubis (2.7.0)
     execjs (2.7.0)
     factory_girl (4.7.0)
@@ -207,7 +208,7 @@ GEM
       interception (>= 0.5)
       pry
     puma (3.6.0)
-    rack (2.0.5)
+    rack (2.2.3)
     rack-protection (2.0.2)
       rack
     rack-test (0.6.3)