diff --git a/Formula/abacas.rb b/Formula/abacas.rb
index 4a1beaf29..86d37a99c 100644
--- a/Formula/abacas.rb
+++ b/Formula/abacas.rb
@@ -11,7 +11,7 @@ class Abacas < Formula
     sha256 cellar: :any_skip_relocation, x86_64_linux: "a486b8b94ea27fe8734d443487fb1a9530f5525c4416c0b94dd5a8be8d7949e9"
   end
 
-  depends_on "mummer"
+  # Remove depends_on "brewsci/bio/mummer"
 
   def install
     inreplace "abacas.1.3.1.pl", "/usr/local/bin/perl", "/usr/bin/env perl"
diff --git a/Formula/jspecies.rb b/Formula/jspecies.rb
index abcea0092..892642779 100644
--- a/Formula/jspecies.rb
+++ b/Formula/jspecies.rb
@@ -10,8 +10,8 @@ class Jspecies < Formula
     sha256 cellar: :any_skip_relocation, sierra: "fdad5b757d32a71e196a65e6b241d30472e55c16634e0f7e777f840817bc8cc9"
   end
 
+  # remove "brewsci/bio/mummer"
   depends_on "brewsci/bio/blast-legacy"
-  depends_on "brewsci/bio/mummer"
   depends_on "openjdk"
 
   def install
diff --git a/Formula/quickmerge.rb b/Formula/quickmerge.rb
index 0225e48b9..db215082b 100644
--- a/Formula/quickmerge.rb
+++ b/Formula/quickmerge.rb
@@ -12,7 +12,7 @@ class Quickmerge < Formula
     sha256 cellar: :any_skip_relocation, x86_64_linux: "980b2b1f9113b394deac9ddb5ce0acf978d19a5ce57b7d8e80bbec28a744f8ff"
   end
 
-  depends_on "mummer"
+  # Remove depends_on "brewsci/bio/mummer"
 
   def install
     system "make", "-C", "merger"