diff --git a/src/libext/mpich/build_mpich.sh b/src/libext/mpich/build_mpich.sh
index 0cef16cd5b..a7b67246a5 100755
--- a/src/libext/mpich/build_mpich.sh
+++ b/src/libext/mpich/build_mpich.sh
@@ -2,7 +2,7 @@
 source ../libext_utils/get_tgz.sh
 rm -rf mpich  mpich-?.?.?
 #VERSION=3.4.2
-VERSION=4.0.22
+VERSION=4.0.2
 #curl -L http://www.mpich.org/static/downloads/${VERSION}/mpich-${VERSION}.tar.gz -o mpich.tgz
 #curl -L https://github.com/pmodels/mpich/releases/download/v${VERSION}/mpich-${VERSION}.tar.gz -o mpich.tgz
 get_tgz https://github.com/pmodels/mpich/releases/download/v${VERSION}/mpich-${VERSION}.tar.gz  mpich.tgz