diff --git a/Library/Homebrew/Gemfile.lock b/Library/Homebrew/Gemfile.lock
index 29ea657687..615544a68c 100644
--- a/Library/Homebrew/Gemfile.lock
+++ b/Library/Homebrew/Gemfile.lock
@@ -21,7 +21,7 @@ GEM
     concurrent-ruby (1.1.9)
     connection_pool (2.2.5)
     diff-lcs (1.4.4)
-    docile (1.3.5)
+    docile (1.4.0)
     domain_name (0.5.20190701)
       unf (>= 0.0.5, < 1.0.0)
     elftools (1.1.3)