diff --git a/CHANGELOG.md b/CHANGELOG.md
index e0e755bb3d..aca800d396 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@ This file is used to list changes made in each version of the AWS ParallelCluste
 - Upgrade NVIDIA driver to version 470.141.03.
 - Upgrade NVIDIA Fabric Manager to version 470.141.03.
 - Disable cron job tasks man-db and mlocate, which may have a negative impact on node performance.
+- Upgrade Intel MPI Library to 2021.6.0.602.
 
 3.2.0
 ------
diff --git a/attributes/default.rb b/attributes/default.rb
index 37effa471d..9100aa7868 100644
--- a/attributes/default.rb
+++ b/attributes/default.rb
@@ -81,10 +81,10 @@
 default['cluster']['intelpython3']['version'] = '2020.2-902'
 
 # Intel MPI
-default['cluster']['intelmpi']['version'] = '2021.4.0'
-default['cluster']['intelmpi']['full_version'] = "#{node['cluster']['intelmpi']['version']}.441"
+default['cluster']['intelmpi']['version'] = '2021.6.0'
+default['cluster']['intelmpi']['full_version'] = "#{node['cluster']['intelmpi']['version']}.602"
 default['cluster']['intelmpi']['modulefile'] = "/opt/intel/mpi/#{node['cluster']['intelmpi']['version']}/modulefiles/mpi"
-default['cluster']['intelmpi']['kitchen_test_string'] = 'Version 2021.4'
+default['cluster']['intelmpi']['kitchen_test_string'] = 'Version 2021.6'
 default['cluster']['intelmpi']['qt_version'] = '5.15.2'
 
 # Arm Performance Library