diff --git a/Library/Homebrew/Gemfile.lock b/Library/Homebrew/Gemfile.lock
index b7cc83d630..b9c1317cbf 100644
--- a/Library/Homebrew/Gemfile.lock
+++ b/Library/Homebrew/Gemfile.lock
@@ -10,11 +10,11 @@ GEM
     backports (3.14.0)
     concurrent-ruby (1.1.5)
     connection_pool (2.2.2)
-    coveralls (0.8.22)
+    coveralls (0.8.23)
       json (>= 1.8, < 3)
       simplecov (~> 0.16.1)
       term-ansicolor (~> 1.3)
-      thor (~> 0.19.4)
+      thor (>= 0.19.4, < 2.0)
       tins (~> 1.6)
     diff-lcs (1.3)
     docile (1.3.1)
@@ -102,7 +102,7 @@ GEM
     simplecov-html (0.10.2)
     term-ansicolor (1.7.1)
       tins (~> 1.0)
-    thor (0.19.4)
+    thor (0.20.3)
     thread_safe (0.3.6)
     tins (1.20.2)
     tzinfo (1.2.5)