diff --git a/Manual/doc_tex/Introduction_ref/thirdparty.tex b/Manual/doc_tex/Introduction_ref/thirdparty.tex
index dc224a32ebd..fea885e3f0d 100644
--- a/Manual/doc_tex/Introduction_ref/thirdparty.tex
+++ b/Manual/doc_tex/Introduction_ref/thirdparty.tex
@@ -42,7 +42,7 @@ from \path'http://developer.amd.com/acml.jsp'.
 A library for multi precision integers and rational numbers.
 \cgal\ offers adapters for these number types. The usage
 of the {\sc Gmp} library is optional.  If it is not already on your system,
-e.g., on Windows, you can download it from \path'www.swox.com/gmp'
+e.g., on Windows, you can download it from \path'http://gmplib.org/'
 or from the Download section of \path'http://www.cgal.org'.
 
 
diff --git a/Manual/doc_tex/Manual/geom.bib b/Manual/doc_tex/Manual/geom.bib
index 00856fb8051..e836f63e52e 100644
--- a/Manual/doc_tex/Manual/geom.bib
+++ b/Manual/doc_tex/Manual/geom.bib
@@ -68783,8 +68783,8 @@ generated in O(dn2d+1) time. We present a simple proof that the (d -
 @misc{g-ggmpa-
 , author =	"Torbj{\"o}rn Granlund"
 , title =	"{GMP}, The {GNU} Multiple Precision Arithmetic Library"
-, note =	"\path|http://www.swox.com/gmp/|"
-, url =	"http://www.swox.com/gmp/"
+, note =	"\path|http://gmplib.org/|"
+, url =	"http://gmplib.org/"
 , update =	"02.03 devillers"
 }
 
@@ -68793,8 +68793,8 @@ generated in O(dn2d+1) time. We present a simple proof that the (d -
 , title =	"{GMP}, The {GNU} Multiple Precision Arithmetic Library"
 , edition =	"2.0.2"
 , year =	1996
-, note =	"http://www.swox.com/gmp/"
-, url =	"http://www.swox.com/gmp/"
+, note =	"http://gmplib.org/"
+, url =	"http://gmplib.org/"
 , update =	"02.03 devillers, 00.03 devillers"
 }