diff --git a/CONTRIBUTIONS.md b/CONTRIBUTIONS.md
index 5a2965f..25347b1 100644
--- a/CONTRIBUTIONS.md
+++ b/CONTRIBUTIONS.md
@@ -31,8 +31,8 @@ follow coding paradigm XYZ" are not good reasons.
 Coding style
 ============
 
-The code complies with [pycodestyle](https://pypi.python.org/pypi/pycodestyle), except
-for the W503-rule to comply with the latest PEP 8 [recommendation for the placement of
+The code complies with [pycodestyle](https://pypi.org/project/pycodestyle/), except for
+the W503-rule to comply with the latest PEP 8 [recommendation for the placement of
 binary operators](
 https://www.python.org/dev/peps/pep-0008/#should-a-line-break-before-or-after-a-binary-operator).
 
diff --git a/README.md b/README.md
index 5b6e99e..f2c0534 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,7 @@ information about the issues.
 install
 -------
 
-snallygaster is available [via pypi](https://pypi.python.org/pypi/snallygaster):
+snallygaster is available [via pypi](https://pypi.org/project/snallygaster/):
 
 ```
 pip3 install snallygaster
diff --git a/TESTS.md b/TESTS.md
index f8cc093..8ddecbd 100644
--- a/TESTS.md
+++ b/TESTS.md
@@ -178,7 +178,7 @@ This checks for common names of SQL database dumps. These can lead to massive da
 leaks.
 
 * [Zeit Online: How 2,000 Unsecured Databases Landed on the Internet](
-  http://www.zeit.de/digital/datenschutz/2017-07/customer-data-how-2000-unsecured-databases-landed-online)
+  https://www.zeit.de/digital/datenschutz/2017-07/customer-data-how-2000-unsecured-databases-landed-online)
 
 
 bitcoin_wallet
@@ -204,7 +204,7 @@ XML file called "local.xml". Access is prevented with an Apache .htaccess file,
 does not work on other web servers.
 
 * [oss-security: Magento leaking of config file local.xml](
-  http://seclists.org/oss-sec/2017/q4/141)
+  https://seclists.org/oss-sec/2017/q4/141)
 
 
 xaa
@@ -476,8 +476,8 @@ Check for mailman and output version.
 django_staticfiles_json
 -----------------------
 
-Checks for the presence of a Django assets manifest file
-[`staticfiles.json`](https://docs.djangoproject.com/en/4.2/ref/contrib/staticfiles/).
+Checks for the presence of a Django assets manifest file [`staticfiles.json`
+](https://docs.djangoproject.com/en/4.2/ref/contrib/staticfiles/).
 
 
 composer