diff --git a/cps/redirect.py b/cps/redirect.py
index 9382a205..09b3101f 100644
--- a/cps/redirect.py
+++ b/cps/redirect.py
@@ -25,7 +25,7 @@
 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 # IN ANY WAY OUT OF THE USE OF THIS SOFTWARE AND DOCUMENTATION, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-# http://flask.pocoo.org/snippets/62/
+# https://web.archive.org/web/20120517003641/http://flask.pocoo.org/snippets/62/
 
 from urllib.parse import urlparse, urljoin
 
diff --git a/requirements.txt b/requirements.txt
index 7a30ae06..acaf4a40 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ APScheduler>=3.6.3,<3.10.0
 werkzeug<2.1.0
 Babel>=1.3,<3.0
 Flask-Babel>=0.11.1,<2.1.0
-Flask-Login>=0.3.2,<0.6.1
+Flask-Login>=0.3.2,<0.6.2
 Flask-Principal>=0.3.2,<0.5.1
 backports_abc>=0.4
 Flask>=1.0.2,<2.1.0