diff --git a/Gemfile.lock b/Gemfile.lock
index 150c604f6..73b7b17a9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -594,7 +594,7 @@ GEM
       unicode-display_width (~> 1.1, >= 1.1.1)
     terrapin (0.6.0)
       climate_control (>= 0.0.3, < 1.0)
-    thor (0.20.0)
+    thor (0.20.3)
     thread_safe (0.3.6)
     tilt (2.0.8)
     timers (4.2.0)