diff --git a/bld/config.nci.access-cm.1440x1080 b/bld/config.nci.access-cm.1440x1080
index 1ccabd5..da089b5 100644
--- a/bld/config.nci.access-cm.1440x1080
+++ b/bld/config.nci.access-cm.1440x1080
@@ -21,4 +21,4 @@ module load intel-fc/14.3.174
 module load intel-cc/14.3.174
 module load netcdf/4.3.2
 module load oasis/dev
-module load openmpi/1.8.4
+module load openmpi/1.6.5
diff --git a/bld/config.nci.access-cm.360x300 b/bld/config.nci.access-cm.360x300
index e8770c9..f0ef6f0 100644
--- a/bld/config.nci.access-cm.360x300
+++ b/bld/config.nci.access-cm.360x300
@@ -13,4 +13,4 @@ module load intel-fc/14.3.174
 module load intel-cc/14.3.174
 module load netcdf/4.3.2
 module load oasis/dev
-module load openmpi/1.8.4
+module load openmpi/1.6.5
diff --git a/bld/config.nci.access-om.1440x1080 b/bld/config.nci.access-om.1440x1080
index 1ccabd5..da089b5 100644
--- a/bld/config.nci.access-om.1440x1080
+++ b/bld/config.nci.access-om.1440x1080
@@ -21,4 +21,4 @@ module load intel-fc/14.3.174
 module load intel-cc/14.3.174
 module load netcdf/4.3.2
 module load oasis/dev
-module load openmpi/1.8.4
+module load openmpi/1.6.5
diff --git a/bld/config.nci.access-om.360x300 b/bld/config.nci.access-om.360x300
index e8770c9..f0ef6f0 100644
--- a/bld/config.nci.access-om.360x300
+++ b/bld/config.nci.access-om.360x300
@@ -13,4 +13,4 @@ module load intel-fc/14.3.174
 module load intel-cc/14.3.174
 module load netcdf/4.3.2
 module load oasis/dev
-module load openmpi/1.8.4
+module load openmpi/1.6.5