diff --git a/man/passwd.1.xml b/man/passwd.1.xml
index 878ab7ba..14caab1e 100644
--- a/man/passwd.1.xml
+++ b/man/passwd.1.xml
@@ -137,7 +137,7 @@
 
       <para>
 	You can find advice on how to choose a strong password on
-	http://en.wikipedia.org/wiki/Password_strength
+	https://en.wikipedia.org/wiki/Password_strength
       </para>
     </refsect2>
   </refsect1>