diff --git a/Library/Homebrew/Gemfile.lock b/Library/Homebrew/Gemfile.lock
index 60ea8603a5..73794cc2b2 100644
--- a/Library/Homebrew/Gemfile.lock
+++ b/Library/Homebrew/Gemfile.lock
@@ -10,7 +10,7 @@ GEM
     bindata (2.5.0)
     coderay (1.1.3)
     concurrent-ruby (1.3.5)
-    diff-lcs (1.6.0)
+    diff-lcs (1.6.1)
     docile (1.4.1)
     elftools (1.3.1)
       bindata (~> 2)
@@ -160,7 +160,6 @@ GEM
 
 PLATFORMS
   aarch64-linux
-  arm-linux
   arm64-darwin
   x86_64-darwin
   x86_64-linux