diff --git a/doc/apple2.sgml b/doc/apple2.sgml
index 33a878223..05b4ef9ba 100644
--- a/doc/apple2.sgml
+++ b/doc/apple2.sgml
@@ -39,7 +39,7 @@ containing the load address and load length. The default load address is
 $803.
 
 <bf/AppleCommander 1.3.5/ or later (available at <url
-url="http://applecommander.sourceforge.net/">) includes the option <tt/-cc65/
+url="https://applecommander.github.io/">) includes the option <tt/-cc65/
 that allows to put binary files with a DOS 3.3 header onto disk images
 containing DOS 3.3 as well as ProDOS 8.
 
diff --git a/doc/apple2enh.sgml b/doc/apple2enh.sgml
index 4f5202543..136f074b5 100644
--- a/doc/apple2enh.sgml
+++ b/doc/apple2enh.sgml
@@ -39,7 +39,7 @@ containing the load address and load length. The default load address is
 &dollar;803.
 
 <bf/AppleCommander 1.3.5/ or later (available at <url
-url="http://applecommander.sourceforge.net/">) includes the option <tt/-cc65/
+url="https://applecommander.github.io/">) includes the option <tt/-cc65/
 that allows to put binary files with a DOS 3.3 header onto disk images
 containing DOS 3.3 as well as ProDOS 8.