diff --git a/Gemfile.lock b/Gemfile.lock
index 765896669..28dd05516 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -685,7 +685,7 @@ GEM
       unicode-display_width (>= 1.1.1, < 4)
     terrapin (0.6.0)
       climate_control (>= 0.0.3, < 1.0)
-    thor (1.3.2)
+    thor (1.4.0)
     tilt (2.0.10)
     timeout (0.4.3)
     tomlrb (2.0.3)