diff --git a/CHANGES b/CHANGES
index 1d0d1a9..a72cd96 100644
--- a/CHANGES
+++ b/CHANGES
@@ -22,7 +22,7 @@
 
 * (March 15, 2005)
 - Added comments about .nf and .fi based on
-  http://www.rfc-editor.org/nroff.html
+  https://web.archive.org/web/20150905054410/www.rfc-editor.org/nroff.html
 
 * (June 21, 2004)
 - make .fi properly end a .nf section
diff --git a/roffit b/roffit
index 54226c6..f74834a 100755
--- a/roffit
+++ b/roffit
@@ -639,7 +639,7 @@ else {
 print $OutFH @conv;
 print $OutFH <<ROFFIT
 <p class="roffit">
- This HTML page was made with <a href="http://daniel.haxx.se/projects/roffit/">roffit</a>.
+ This HTML page was made with <a href="https://daniel.haxx.se/projects/roffit/">roffit</a>.
 ROFFIT
     ;
 
diff --git a/roffit.1 b/roffit.1
index 4fb575f..4c855e6 100644
--- a/roffit.1
+++ b/roffit.1
@@ -75,4 +75,4 @@ Text marked to be emphasized.
 .IP p.roffit
 Used for the advertising final paragraph.
 .SH WWW
-http://daniel.haxx.se/projects/roffit
+https://daniel.haxx.se/projects/roffit
diff --git a/testpage.1 b/testpage.1
index 0d6ed81..b6a04fb 100644
--- a/testpage.1
+++ b/testpage.1
@@ -67,4 +67,4 @@ Text marked to be emphasized.
 .IP p.roffit
 Used for the advertising final paragraph.
 .SH WWW
-http://daniel.haxx.se/projects/roffit
+https://daniel.haxx.se/projects/roffit
diff --git a/testpage.output b/testpage.output
index be7b30d..2b5532d 100644
--- a/testpage.output
+++ b/testpage.output
@@ -36,5 +36,5 @@
 <p class="level1">Text marked to be emphasized. </p>
 <p class="level0"><a name="proffit"></a><span class="nroffip">p.roffit</span> </p>
 <p class="level1">Used for the advertising final paragraph. </p><a name="WWW"></a><h2 class="nroffsh">Www</h2>
-<p class="level0"><a href="http://daniel.haxx.se/projects/roffit">http://daniel.haxx.se/projects/roffit</a> </p><p class="roffit">
- This HTML page was made with <a href="http://daniel.haxx.se/projects/roffit/">roffit</a>.
+<p class="level0"><a href="https://daniel.haxx.se/projects/roffit">https://daniel.haxx.se/projects/roffit</a> </p><p class="roffit">
+ This HTML page was made with <a href="https://daniel.haxx.se/projects/roffit/">roffit</a>.