diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 9f467f5..d820913 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -25,8 +25,8 @@ repos:
     hooks:
     -   id: pyupgrade
         args: ['--py38-plus']
--   repo: https://github.com/pre-commit/mirrors-autopep8
-    rev: v2.0.4
+-   repo: https://github.com/hhatto/autopep8
+    rev: v2.1.0
     hooks:
     -   id: autopep8
 -   repo: https://github.com/PyCQA/flake8
diff --git a/pypi_browser/packaging.py b/pypi_browser/packaging.py
index 3b86cfe..ab10a98 100644
--- a/pypi_browser/packaging.py
+++ b/pypi_browser/packaging.py
@@ -13,7 +13,7 @@
 
 
 def pep426_normalize(package_name: str) -> str:
-    return re.sub(r'[-_.]+', '-', package_name).lower()
+    return re.sub(r'[-_.]+', '-', package_name.strip()).lower()
 
 
 class UnsupportedPackageType(Exception):