diff --git a/doc/src/sgml/acronyms.sgml b/doc/src/sgml/acronyms.sgml
index 8bde44e5afe..c64e44b954a 100644
--- a/doc/src/sgml/acronyms.sgml
+++ b/doc/src/sgml/acronyms.sgml
@@ -71,7 +71,7 @@
     <term><acronym>CPAN</acronym></term>
     <listitem>
      <para>
-      <ulink url="http://www.cpan.org/">Comprehensive Perl Archive Network</ulink>
+      <ulink url="https://www.cpan.org/">Comprehensive Perl Archive Network</ulink>
      </para>
     </listitem>
    </varlistentry>
diff --git a/doc/src/sgml/external-projects.sgml b/doc/src/sgml/external-projects.sgml
index 38463ff1019..825c9775ff0 100644
--- a/doc/src/sgml/external-projects.sgml
+++ b/doc/src/sgml/external-projects.sgml
@@ -65,7 +65,7 @@
       <entry>DBD::Pg</entry>
       <entry>Perl</entry>
       <entry>Perl DBI driver</entry>
-      <entry><ulink url="http://search.cpan.org/dist/DBD-Pg/"></ulink></entry>
+      <entry><ulink url="https://metacpan.org/release/DBD-Pg/"></ulink></entry>
      </row>
 
      <row>