diff --git a/README.md b/README.md
index 3115182..2fd5760 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ To install the package itself, run:
 
 You also need a planetary ephemeris file `JPLEPH`. You can download it from here:
 
-http://pkleiweg.home.xs4all.nl/jpleph/
+https://bisse.nl/jpleph/
 
 Put the file in this directory:
 
diff --git a/doc.go b/doc.go
index 3a2a780..46397bc 100644
--- a/doc.go
+++ b/doc.go
@@ -3,7 +3,7 @@ Package novas provides an interface to the Naval Observatory Vector Astrometry S
 
 NOVAS homepage: http://aa.usno.navy.mil/software/novas/
 
-You need a planetary ephemeris file JPLEPH. You can download it here: http://pkleiweg.home.xs4all.nl/jpleph/
+You need a planetary ephemeris file JPLEPH. You can download it here: https://bisse.nl/jpleph/
 
 Put it in this directory: