diff --git a/Gemfile.lock b/Gemfile.lock
index 2b04cb0..a2c681e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,11 +1,13 @@
 GEM
   remote: https://rubygems.org/
   specs:
+    generator (0.0.1)
     lazy_priority_queue (0.1.1)
     rgl (0.5.6)
       lazy_priority_queue (~> 0.1.0)
       stream (~> 0.5.2)
-    stream (0.5.2)
+    stream (0.5.3)
+      generator
 
 PLATFORMS
   ruby