diff --git a/Library/Homebrew/livecheck/livecheck.rb b/Library/Homebrew/livecheck/livecheck.rb
index 306934d7ed..1ac6b31b74 100644
--- a/Library/Homebrew/livecheck/livecheck.rb
+++ b/Library/Homebrew/livecheck/livecheck.rb
@@ -441,7 +441,7 @@ module Homebrew
         info[:version][:latest]
       end
 
-      puts "#{formula_or_cask_s} : #{current_s} ==> #{latest_s}"
+      puts "#{formula_or_cask_s}: #{current_s} ==> #{latest_s}"
     end
 
     sig {
diff --git a/Library/Homebrew/livecheck/skip_conditions.rb b/Library/Homebrew/livecheck/skip_conditions.rb
index d39bbb0c68..f5d2f08358 100644
--- a/Library/Homebrew/livecheck/skip_conditions.rb
+++ b/Library/Homebrew/livecheck/skip_conditions.rb
@@ -264,12 +264,12 @@ module Homebrew
         if skip_hash[:messages].is_a?(Array) && skip_hash[:messages].count.positive?
           # TODO: Handle multiple messages, only if needed in the future
           if skip_hash[:status] == "skipped"
-            puts "#{Tty.red}#{name}#{Tty.reset} : skipped - #{skip_hash[:messages][0]}"
+            puts "#{Tty.red}#{name}#{Tty.reset}: skipped - #{skip_hash[:messages][0]}"
           else
-            puts "#{Tty.red}#{name}#{Tty.reset} : #{skip_hash[:messages][0]}"
+            puts "#{Tty.red}#{name}#{Tty.reset}: #{skip_hash[:messages][0]}"
           end
         elsif skip_hash[:status].present?
-          puts "#{Tty.red}#{name}#{Tty.reset} : #{skip_hash[:status]}"
+          puts "#{Tty.red}#{name}#{Tty.reset}: #{skip_hash[:status]}"
         end
       end
     end
diff --git a/Library/Homebrew/test/dev-cmd/livecheck_spec.rb b/Library/Homebrew/test/dev-cmd/livecheck_spec.rb
index abc76ac56f..5166add577 100644
--- a/Library/Homebrew/test/dev-cmd/livecheck_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/livecheck_spec.rb
@@ -15,7 +15,7 @@ describe "brew livecheck" do
     setup_test_formula("test", content)
 
     expect { brew "livecheck", "test" }
-      .to output(/test : /).to_stdout
+      .to output(/test: /).to_stdout
       .and not_to_output.to_stderr
       .and be_a_success
   end
diff --git a/Library/Homebrew/test/livecheck/skip_conditions_spec.rb b/Library/Homebrew/test/livecheck/skip_conditions_spec.rb
index 1ede45b53a..5b34d12c75 100644
--- a/Library/Homebrew/test/livecheck/skip_conditions_spec.rb
+++ b/Library/Homebrew/test/livecheck/skip_conditions_spec.rb
@@ -470,7 +470,7 @@ describe Homebrew::Livecheck::SkipConditions do
     context "when a formula without a livecheckable is deprecated" do
       it "prints skip information" do
         expect { skip_conditions.print_skip_information(status_hashes[:formula][:deprecated]) }
-          .to output("test_deprecated : deprecated\n").to_stdout
+          .to output("test_deprecated: deprecated\n").to_stdout
           .and not_to_output.to_stderr
       end
     end
@@ -478,7 +478,7 @@ describe Homebrew::Livecheck::SkipConditions do
     context "when a formula without a livecheckable is disabled" do
       it "prints skip information" do
         expect { skip_conditions.print_skip_information(status_hashes[:formula][:disabled]) }
-          .to output("test_disabled : disabled\n").to_stdout
+          .to output("test_disabled: disabled\n").to_stdout
           .and not_to_output.to_stderr
       end
     end
@@ -486,7 +486,7 @@ describe Homebrew::Livecheck::SkipConditions do
     context "when a formula without a livecheckable is versioned" do
       it "prints skip information" do
         expect { skip_conditions.print_skip_information(status_hashes[:formula][:versioned]) }
-          .to output("test@0.0.1 : versioned\n").to_stdout
+          .to output("test@0.0.1: versioned\n").to_stdout
           .and not_to_output.to_stderr
       end
     end
@@ -494,7 +494,7 @@ describe Homebrew::Livecheck::SkipConditions do
     context "when a formula is HEAD-only and not installed" do
       it "prints skip information" do
         expect { skip_conditions.print_skip_information(status_hashes[:formula][:head_only]) }
-          .to output("test_head_only : HEAD only formula must be installed to be livecheckable\n").to_stdout
+          .to output("test_head_only: HEAD only formula must be installed to be livecheckable\n").to_stdout
           .and not_to_output.to_stderr
       end
     end
@@ -502,7 +502,7 @@ describe Homebrew::Livecheck::SkipConditions do
     context "when a formula has a GitHub Gist stable URL" do
       it "prints skip information" do
         expect { skip_conditions.print_skip_information(status_hashes[:formula][:gist]) }
-          .to output("test_gist : skipped - Stable URL is a GitHub Gist\n").to_stdout
+          .to output("test_gist: skipped - Stable URL is a GitHub Gist\n").to_stdout
           .and not_to_output.to_stderr
       end
     end
@@ -510,7 +510,7 @@ describe Homebrew::Livecheck::SkipConditions do
     context "when a formula has a Google Code Archive stable URL" do
       it "prints skip information" do
         expect { skip_conditions.print_skip_information(status_hashes[:formula][:google_code_archive]) }
-          .to output("test_google_code_archive : skipped - Stable URL is from Google Code Archive\n").to_stdout
+          .to output("test_google_code_archive: skipped - Stable URL is from Google Code Archive\n").to_stdout
           .and not_to_output.to_stderr
       end
     end
@@ -518,7 +518,7 @@ describe Homebrew::Livecheck::SkipConditions do
     context "when a formula has an Internet Archive stable URL" do
       it "prints skip information" do
         expect { skip_conditions.print_skip_information(status_hashes[:formula][:internet_archive]) }
-          .to output("test_internet_archive : skipped - Stable URL is from Internet Archive\n").to_stdout
+          .to output("test_internet_archive: skipped - Stable URL is from Internet Archive\n").to_stdout
           .and not_to_output.to_stderr
       end
     end
@@ -526,11 +526,11 @@ describe Homebrew::Livecheck::SkipConditions do
     context "when a formula has a `livecheck` block containing `skip`" do
       it "prints skip information" do
         expect { skip_conditions.print_skip_information(status_hashes[:formula][:skip]) }
-          .to output("test_skip : skipped\n").to_stdout
+          .to output("test_skip: skipped\n").to_stdout
           .and not_to_output.to_stderr
 
         expect { skip_conditions.print_skip_information(status_hashes[:formula][:skip_with_message]) }
-          .to output("test_skip_with_message : skipped - Not maintained\n").to_stdout
+          .to output("test_skip_with_message: skipped - Not maintained\n").to_stdout
           .and not_to_output.to_stderr
       end
     end
@@ -538,7 +538,7 @@ describe Homebrew::Livecheck::SkipConditions do
     context "when the cask is discontinued without a livecheckable" do
       it "prints skip information" do
         expect { skip_conditions.print_skip_information(status_hashes[:cask][:discontinued]) }
-          .to output("test_discontinued : discontinued\n").to_stdout
+          .to output("test_discontinued: discontinued\n").to_stdout
           .and not_to_output.to_stderr
       end
     end
@@ -546,7 +546,7 @@ describe Homebrew::Livecheck::SkipConditions do
     context "when the cask has `version :latest` without a livecheckable" do
       it "prints skip information" do
         expect { skip_conditions.print_skip_information(status_hashes[:cask][:latest]) }
-          .to output("test_latest : latest\n").to_stdout
+          .to output("test_latest: latest\n").to_stdout
           .and not_to_output.to_stderr
       end
     end
@@ -554,7 +554,7 @@ describe Homebrew::Livecheck::SkipConditions do
     context "when the cask has an unversioned URL without a livecheckable" do
       it "prints skip information" do
         expect { skip_conditions.print_skip_information(status_hashes[:cask][:unversioned]) }
-          .to output("test_unversioned : unversioned\n").to_stdout
+          .to output("test_unversioned: unversioned\n").to_stdout
           .and not_to_output.to_stderr
       end
     end
@@ -562,11 +562,11 @@ describe Homebrew::Livecheck::SkipConditions do
     context "when the cask has a `livecheck` block containing `skip`" do
       it "prints skip information" do
         expect { skip_conditions.print_skip_information(status_hashes[:cask][:skip]) }
-          .to output("test_skip : skipped\n").to_stdout
+          .to output("test_skip: skipped\n").to_stdout
           .and not_to_output.to_stderr
 
         expect { skip_conditions.print_skip_information(status_hashes[:cask][:skip_with_message]) }
-          .to output("test_skip_with_message : skipped - Not maintained\n").to_stdout
+          .to output("test_skip_with_message: skipped - Not maintained\n").to_stdout
           .and not_to_output.to_stderr
       end
     end