diff --git a/ports/libmpfr/libmpfr.port b/ports/libmpfr/libmpfr.port
index 7cd3d29e..ee44fc4b 100644
--- a/ports/libmpfr/libmpfr.port
+++ b/ports/libmpfr/libmpfr.port
@@ -1,10 +1,10 @@
 NAME=libmpfr
 BUILD_LIBRARIES='libstdc++ libgmp'
-VERSION=4.1.0
+VERSION=4.2.1
 DISTNAME=mpfr-$VERSION
 COMPRESSION=tar.xz
 ARCHIVE=$DISTNAME.$COMPRESSION
-SHA256SUM=0c98a3f1732ff6ca4ea690552079da9c597872d30e96ec28414ee23c95558a7f
+SHA256SUM=277807353a6726978996945af13e52829e3abd7a9a5b7fb2793894e18f1fcbb2
 UPSTREAM_SITE=https://ftp.gnu.org/gnu/mpfr
 UPSTREAM_ARCHIVE=$ARCHIVE
 LICENSE=LGPL-3.0-or-later