diff --git a/Gemfile.lock b/Gemfile.lock
index da734e36ba..60dd767177 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -247,7 +247,7 @@ GEM
     stringio (3.1.0)
     terminal-table (3.0.2)
       unicode-display_width (>= 1.1.1, < 3)
-    thor (1.3.0)
+    thor (1.3.1)
     timecop (0.9.8)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)