diff --git a/lib/bundle/bundle.rb b/lib/bundle/bundle.rb
index 5b638bdf3..5d4ed0d69 100644
--- a/lib/bundle/bundle.rb
+++ b/lib/bundle/bundle.rb
@@ -33,14 +33,6 @@ def whalebrew_installed?
       @whalebrew_installed ||= which_formula("whalebrew")
     end
 
-    def mas_signedin?
-      # mas account doesn't work on Monterey (yet)
-      # https://github.com/mas-cli/mas/issues/417#issuecomment-957963271
-      return true if MacOS.version >= :monterey
-
-      Kernel.system "mas account &>/dev/null"
-    end
-
     def cask_installed?
       @cask_installed ||= File.directory?("#{HOMEBREW_PREFIX}/Caskroom") &&
                           (File.directory?("#{HOMEBREW_LIBRARY}/Taps/homebrew/homebrew-cask") ||
diff --git a/lib/bundle/mac_app_store_installer.rb b/lib/bundle/mac_app_store_installer.rb
index fba924f4e..2125b32b0 100644
--- a/lib/bundle/mac_app_store_installer.rb
+++ b/lib/bundle/mac_app_store_installer.rb
@@ -24,11 +24,6 @@ def preinstall(name, id, no_upgrade: false, verbose: false)
         return false
       end
 
-      unless Bundle.mas_signedin?
-        puts "Not signed in to Mac App Store." if verbose
-        raise "Unable to install #{name} app. mas not signed in to Mac App Store."
-      end
-
       true
     end
 
@@ -70,17 +65,13 @@ def installed_app_ids
     end
 
     def outdated_app_ids
-      []
-
-      # TODO: can't be trusted right now.
-      # Uncomment when https://github.com/mas-cli/mas/pull/496 is merged.
-      # @outdated_app_ids ||= if Bundle.mas_installed?
-      #   `mas outdated 2>/dev/null`.split("\n").map do |app|
-      #     app.split(" ", 2).first.to_i
-      #   end
-      # else
-      #   []
-      # end
+      @outdated_app_ids ||= if Bundle.mas_installed?
+        `mas outdated 2>/dev/null`.split("\n").map do |app|
+          app.split(" ", 2).first.to_i
+        end
+      else
+        []
+      end
     end
   end
 end
diff --git a/spec/bundle/mac_app_store_installer_spec.rb b/spec/bundle/mac_app_store_installer_spec.rb
index 46a8c357f..cb21b45f0 100644
--- a/spec/bundle/mac_app_store_installer_spec.rb
+++ b/spec/bundle/mac_app_store_installer_spec.rb
@@ -41,64 +41,46 @@
       allow(Bundle).to receive(:mas_installed?).and_return(true)
     end
 
-    # TODO: can't be trusted right now.
-    # Uncomment when https://github.com/mas-cli/mas/pull/496 is merged.
-    # describe ".outdated_app_ids" do
-    #   it "returns app ids" do
-    #     expect(described_class).to receive(:`).and_return("foo 123")
-    #     described_class.reset!
-    #     described_class.outdated_app_ids
-    #   end
-    # end
-
-    context "when mas is not signed in" do
-      it "outputs an error" do
-        allow(described_class).to receive_messages(installed_app_ids: [123], outdated_app_ids: [123])
-        allow(MacOS).to receive(:version).and_return(:big_sur)
-        expect(Kernel).to receive(:system).with("mas account &>/dev/null").and_return(false)
-        expect { described_class.preinstall("foo", 123) }.to raise_error(RuntimeError)
+    describe ".outdated_app_ids" do
+      it "returns app ids" do
+        expect(described_class).to receive(:`).and_return("foo 123")
+        described_class.reset!
+        described_class.outdated_app_ids
       end
     end
 
-    context "when mas is signed in" do
+    context "when app is installed" do
       before do
-        allow(Bundle).to receive(:mas_signedin?).and_return(true)
-        allow(described_class).to receive(:outdated_app_ids).and_return([])
+        allow(described_class).to receive(:installed_app_ids).and_return([123])
       end
 
-      context "when app is installed" do
-        before do
-          allow(described_class).to receive(:installed_app_ids).and_return([123])
-        end
-
-        it "skips" do
-          expect(Bundle).not_to receive(:system)
-          expect(described_class.preinstall("foo", 123)).to be(false)
-        end
+      it "skips" do
+        expect(Bundle).not_to receive(:system)
+        expect(described_class.preinstall("foo", 123)).to be(false)
       end
+    end
 
-      context "when app is outdated" do
-        before do
-          allow(described_class).to receive_messages(installed_app_ids: [123], outdated_app_ids: [123])
-        end
+    context "when app is outdated" do
+      before do
+        allow(described_class).to receive_messages(installed_app_ids: [123], outdated_app_ids: [123])
+      end
 
-        it "upgrades" do
-          expect(Bundle).to receive(:system).with("mas", "upgrade", "123", verbose: false).and_return(true)
-          expect(described_class.preinstall("foo", 123)).to be(true)
-          expect(described_class.install("foo", 123)).to be(true)
-        end
+      it "upgrades" do
+        expect(Bundle).to receive(:system).with("mas", "upgrade", "123", verbose: false).and_return(true)
+        expect(described_class.preinstall("foo", 123)).to be(true)
+        expect(described_class.install("foo", 123)).to be(true)
       end
+    end
 
-      context "when app is not installed" do
-        before do
-          allow(described_class).to receive(:installed_app_ids).and_return([])
-        end
+    context "when app is not installed" do
+      before do
+        allow(described_class).to receive(:installed_app_ids).and_return([])
+      end
 
-        it "installs app" do
-          expect(Bundle).to receive(:system).with("mas", "install", "123", verbose: false).and_return(true)
-          expect(described_class.preinstall("foo", 123)).to be(true)
-          expect(described_class.install("foo", 123)).to be(true)
-        end
+      it "installs app" do
+        expect(Bundle).to receive(:system).with("mas", "install", "123", verbose: false).and_return(true)
+        expect(described_class.preinstall("foo", 123)).to be(true)
+        expect(described_class.install("foo", 123)).to be(true)
       end
     end
   end