diff --git a/Library/Homebrew/cask/tab.rb b/Library/Homebrew/cask/tab.rb
index 08ceb477b0..4cf359b33a 100644
--- a/Library/Homebrew/cask/tab.rb
+++ b/Library/Homebrew/cask/tab.rb
@@ -13,7 +13,7 @@ module Cask
 
       tab.tabfile = cask.metadata_main_container_path/FILENAME
       tab.uninstall_flight_blocks = cask.uninstall_flight_blocks?
-      tab.runtime_dependencies = Tab.runtime_deps_hash(cask, cask.depends_on)
+      tab.runtime_dependencies = Tab.runtime_deps_hash(cask)
       tab.source["version"] = cask.version.to_s
       tab.source["path"] = cask.sourcefile_path.to_s
       tab.uninstall_artifacts = cask.artifacts_list(uninstall_only: true)
@@ -49,7 +49,7 @@ module Cask
       tab
     end
 
-    def self.runtime_deps_hash(cask, depends_on)
+    def self.runtime_deps_hash(cask)
       cask_and_formula_dep_graph = ::Utils::TopologicalHash.graph_package_dependencies(cask)
       cask_deps, formula_deps = cask_and_formula_dep_graph.values.flatten.uniq.partition do |dep|
         dep.is_a?(Cask)
@@ -73,9 +73,6 @@ module Cask
         end
       end
 
-      runtime_deps[:macos] = depends_on.macos if depends_on.macos
-      runtime_deps[:arch] = depends_on.arch if depends_on.arch
-
       runtime_deps
     end
 
diff --git a/Library/Homebrew/test/cask/tab_spec.rb b/Library/Homebrew/test/cask/tab_spec.rb
index 9d8818f28b..9b346e2601 100644
--- a/Library/Homebrew/test/cask/tab_spec.rb
+++ b/Library/Homebrew/test/cask/tab_spec.rb
@@ -89,7 +89,7 @@ RSpec.describe Cask::Tab, :cask do
     specify "with no dependencies" do
       cask = Cask::CaskLoader.load("local-transmission")
 
-      expect(described_class.runtime_deps_hash(cask, cask.depends_on)).to eq({})
+      expect(described_class.runtime_deps_hash(cask)).to eq({})
     end
 
     specify "with cask dependencies" do
@@ -100,37 +100,25 @@ RSpec.describe Cask::Tab, :cask do
           { "full_name"=>"local-transmission", "version"=>"2.61", "declared_directly"=>true },
         ],
       }
-      expect(described_class.runtime_deps_hash(cask, cask.depends_on)).to eq(expected_hash)
+      expect(described_class.runtime_deps_hash(cask)).to eq(expected_hash)
     end
 
-    specify "with macos symbol dependencies" do
+    it "ignores macos symbol dependencies" do
       cask = Cask::CaskLoader.load("with-depends-on-macos-symbol")
 
-      expected_hash = {
-        macos: MacOSRequirement.new([MacOS.version.to_sym], comparator: "=="),
-      }
-      expect(described_class.runtime_deps_hash(cask, cask.depends_on)).to eq(expected_hash)
+      expect(described_class.runtime_deps_hash(cask)).to eq({})
     end
 
-    specify "with macos array dependencies" do
+    it "ignores macos array dependencies" do
       cask = Cask::CaskLoader.load("with-depends-on-macos-array")
 
-      expected_hash = {
-        macos: MacOSRequirement.new([[:catalina, MacOS.version.to_sym]], comparator: "=="),
-      }
-      expect(described_class.runtime_deps_hash(cask, cask.depends_on)).to eq(expected_hash)
+      expect(described_class.runtime_deps_hash(cask)).to eq({})
     end
 
-    specify "with arch dependencies" do
+    it "ignores arch dependencies" do
       cask = Cask::CaskLoader.load("with-depends-on-arch")
 
-      expected_hash = {
-        arch: [
-          { type: :intel, bits: 64 },
-          { type: :arm, bits: 64 },
-        ],
-      }
-      expect(described_class.runtime_deps_hash(cask, cask.depends_on)).to eq(expected_hash)
+      expect(described_class.runtime_deps_hash(cask)).to eq({})
     end
 
     specify "with all types of dependencies" do
@@ -141,7 +129,6 @@ RSpec.describe Cask::Tab, :cask do
       expect(Formulary).to receive(:factory).with("unar").and_return(unar)
 
       expected_hash = {
-        arch:    [{ type: :intel, bits: 64 }, { type: :arm, bits: 64 }],
         cask:    [
           { "full_name"=>"local-caffeine", "version"=>"1.2.3", "declared_directly"=>true },
           { "full_name"=>"with-depends-on-cask", "version"=>"1.2.3", "declared_directly"=>true },
@@ -150,10 +137,9 @@ RSpec.describe Cask::Tab, :cask do
         formula: [
           { "full_name"=>"unar", "version"=>"1.2", "revision"=>0, "pkg_version"=>"1.2", "declared_directly"=>true },
         ],
-        macos:   MacOSRequirement.new([:el_capitan], comparator: ">="),
       }
 
-      runtime_deps_hash = described_class.runtime_deps_hash(cask, cask.depends_on)
+      runtime_deps_hash = described_class.runtime_deps_hash(cask)
       tab = described_class.new
       tab.runtime_dependencies = runtime_deps_hash
       expect(tab.runtime_dependencies).to eql(expected_hash)