diff --git a/example.config.yml b/example.config.yml
index 96010d7..6683afe 100644
--- a/example.config.yml
+++ b/example.config.yml
@@ -2,7 +2,7 @@
 # Working directory where HPL and associated applications will be compiled.
 hpl_root: /opt/top500
 
-mpich_version: "4.2.2"
+mpich_version: "4.2.3"
 
 # Linear algebra library options.
 linear_algebra_library: blis  # 'atlas', 'openblas', or 'blis'