diff --git a/ChangeLog b/ChangeLog
index 41e870c1c1..56bdeea853 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2018-02-07  Joseph Myers  <joseph@codesourcery.com>
+
+	* scripts/build-many-glibcs.py (Context.checkout): Default MPFR
+	version to 4.0.1.
+
 2018-02-07  Zack Weinberg  <zackw@panix.com>
 
 	* bits/_G_config.h: Move back to sysdeps/generic/_G_config.h.
diff --git a/scripts/build-many-glibcs.py b/scripts/build-many-glibcs.py
index 5be9b79019..09c3c7c576 100755
--- a/scripts/build-many-glibcs.py
+++ b/scripts/build-many-glibcs.py
@@ -718,7 +718,7 @@ class Context(object):
                             'gmp': '6.1.2',
                             'linux': '4.15',
                             'mpc': '1.1.0',
-                            'mpfr': '4.0.0',
+                            'mpfr': '4.0.1',
                             'mig': 'vcs-mainline',
                             'gnumach': 'vcs-mainline',
                             'hurd': 'vcs-mainline'}