diff --git a/util/crossgcc/buildgcc b/util/crossgcc/buildgcc
index a526b50..0f5a70a 100755
--- a/util/crossgcc/buildgcc
+++ b/util/crossgcc/buildgcc
@@ -35,7 +35,7 @@
 
 # GCC toolchain version numbers
 GMP_VERSION=6.2.1
-MPFR_VERSION=4.1.1
+MPFR_VERSION=4.2.0
 MPC_VERSION=1.3.1
 GCC_VERSION=11.2.0
 BINUTILS_VERSION=2.37
diff --git a/util/crossgcc/sum/mpfr-4.1.1.tar.xz.cksum b/util/crossgcc/sum/mpfr-4.1.1.tar.xz.cksum
deleted file mode 100644
index d4e2411..0000000
--- a/util/crossgcc/sum/mpfr-4.1.1.tar.xz.cksum
+++ /dev/null
@@ -1 +0,0 @@
-2355e921d6c97c898cfe7a57dd7e72725f1fded4  tarballs/mpfr-4.1.1.tar.xz
diff --git a/util/crossgcc/sum/mpfr-4.2.0.tar.xz.cksum b/util/crossgcc/sum/mpfr-4.2.0.tar.xz.cksum
new file mode 100644
index 0000000..4a67091
--- /dev/null
+++ b/util/crossgcc/sum/mpfr-4.2.0.tar.xz.cksum
@@ -0,0 +1 @@
+4f734ca3ebceac28e2f944b131a47133b19e2c5e  tarballs/mpfr-4.2.0.tar.xz