diff --git a/Gemfile.lock b/Gemfile.lock
index 2050614..4c39cbf 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -336,7 +336,7 @@ GEM
     stringio (3.2.0)
     temple (0.10.4)
     thor (1.5.0)
-    thruster (0.1.20-x86_64-linux)
+    thruster (0.1.21-x86_64-linux)
     tilt (2.7.0)
     timeout (0.6.1)
     tsort (0.2.0)