diff --git a/Gemfile.lock b/Gemfile.lock
index 14bb808..b0e6529 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -3,7 +3,7 @@ GEM
   specs:
     addressable (2.8.9)
       public_suffix (>= 2.0.2, < 8.0)
-    ansi (1.5.0)
+    ansi (1.6.0)
     ast (2.4.3)
     base64 (0.3.0)
     bigdecimal (4.1.0)