diff --git a/.gitignore b/.gitignore
index f3d483d..2bd907e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,3 +8,4 @@
 /mpich-3.3.2.tar.gz
 /mpich-3.4.tar.gz
 /mpich-3.4.1.tar.gz
+/mpich-3.4.2.tar.gz
diff --git a/mpich.spec b/mpich.spec
index 3c13a23..4ad1ea3 100644
--- a/mpich.spec
+++ b/mpich.spec
@@ -1,7 +1,7 @@
 Summary:        A high-performance implementation of MPI
 Name:           mpich
-Version:        3.4.1
-Release:        4%{?dist}
+Version:        3.4.2
+Release:        1%{?dist}
 License:        MIT
 URL:            https://www.mpich.org/
 
@@ -251,6 +251,10 @@ make check VERBOSE=1 \
 %{python3_sitearch}/%{name}.pth
 
 %changelog
+* Sat Nov 27 2021 Honggang Li <honli@redhat.com> - 3.4.2-1
+- Update to latest version 3.4.2
+- Related: rhbz#2015398
+
 * Mon Aug 09 2021 Mohan Boddu <mboddu@redhat.com>
 - Rebuilt for IMA sigs, glibc 2.34, aarch64 flags
   Related: rhbz#1991688
diff --git a/sources b/sources
index 344b066..6586107 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (mpich-3.4.1.tar.gz) = 61aa161b14bd501320e45e0598ea4f125a704383e4998bf1773ba8b1ce06fb73204bad8f7a5fc147b1cef97e6420cdb150856f6ab03db4dddfe87f02edd3b8d2
+SHA512 (mpich-3.4.2.tar.gz) = 5f5389071c7d275a864df16aedd19f2b925c9b9ad3b304f9c9f99b5808f6b82def775b4191c03cdd3288c5e4478a40a2aae22c3cf2aabe82be1dd612efd7f2a6