diff --git a/Gemfile.lock b/Gemfile.lock
index 78402bdda..c298a5054 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -113,10 +113,10 @@ GEM
       execjs (~> 2.0)
     base64 (0.2.0)
     bcrypt (3.1.18)
-    better_errors (2.9.1)
-      coderay (>= 1.0.0)
+    better_errors (2.10.1)
       erubi (>= 1.0.0)
       rack (>= 0.9.0)
+      rouge (>= 1.0.0)
     bindex (0.8.1)
     binding_of_caller (1.0.0)
       debug_inspector (>= 0.0.1)
@@ -416,6 +416,7 @@ GEM
       actionpack (>= 5.2)
       railties (>= 5.2)
     rexml (3.2.5)
+    rouge (4.5.1)
     rspec (3.13.0)
       rspec-core (~> 3.13.0)
       rspec-expectations (~> 3.13.0)