diff --git a/Library/Homebrew/livecheck/strategy/pypi.rb b/Library/Homebrew/livecheck/strategy/pypi.rb
index 9ff3184e76..0b23cfcbfe 100644
--- a/Library/Homebrew/livecheck/strategy/pypi.rb
+++ b/Library/Homebrew/livecheck/strategy/pypi.rb
@@ -67,7 +67,7 @@ module Homebrew
           regex_suffix = Regexp.escape(suffix).gsub("\\-", "-")
 
           # Example regex: `%r{href=.*?/packages.*?/example[._-]v?(\d+(?:\.\d+)*(?:[._-]post\d+)?)\.t}i`
-          regex_name = Regexp.escape(T.must(match[:package_name])).gsub("\\-", "-")
+          regex_name = Regexp.escape(T.must(match[:package_name])).gsub(/\\[_-]/, "[_-]")
           values[:regex] =
             %r{href=.*?/packages.*?/#{regex_name}[._-]v?(\d+(?:\.\d+)*(?:[._-]post\d+)?)#{regex_suffix}}i
 
diff --git a/Library/Homebrew/test/livecheck/strategy/pypi_spec.rb b/Library/Homebrew/test/livecheck/strategy/pypi_spec.rb
index eb568aeecf..2cdd945c11 100644
--- a/Library/Homebrew/test/livecheck/strategy/pypi_spec.rb
+++ b/Library/Homebrew/test/livecheck/strategy/pypi_spec.rb
@@ -5,13 +5,13 @@ require "livecheck/strategy"
 RSpec.describe Homebrew::Livecheck::Strategy::Pypi do
   subject(:pypi) { described_class }
 
-  let(:pypi_url) { "https://files.pythonhosted.org/packages/ab/cd/efg/example-1.2.3.tar.gz" }
+  let(:pypi_url) { "https://files.pythonhosted.org/packages/ab/cd/efg/example-package-1.2.3.tar.gz" }
   let(:non_pypi_url) { "https://brew.sh/test" }
 
   let(:generated) do
     {
-      url:   "https://pypi.org/project/example/#files",
-      regex: %r{href=.*?/packages.*?/example[._-]v?(\d+(?:\.\d+)*(?:[._-]post\d+)?)\.t}i,
+      url:   "https://pypi.org/project/example-package/#files",
+      regex: %r{href=.*?/packages.*?/example[_-]package[._-]v?(\d+(?:\.\d+)*(?:[._-]post\d+)?)\.t}i,
     }
   end