diff --git a/sleeper/Gemfile.lock b/sleeper/Gemfile.lock
index 7110fff..4e477ff 100644
--- a/sleeper/Gemfile.lock
+++ b/sleeper/Gemfile.lock
@@ -1,7 +1,7 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    json (2.1.0)
+    json (2.3.0)
 
 PLATFORMS
   ruby