diff --git a/etc/config/CGAL.csh b/etc/config/CGAL.csh
index 5f7dceec..96b5201c 100644
--- a/etc/config/CGAL.csh
+++ b/etc/config/CGAL.csh
@@ -2,7 +2,7 @@
 # =========                 |
 # \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
 #  \\    /   O peration     |
-#   \\  /    A nd           | Copyright (C) 2014 OpenFOAM Foundation
+#   \\  /    A nd           | Copyright (C) 2014-2015 OpenFOAM Foundation
 #    \\/     M anipulation  |
 #------------------------------------------------------------------------------
 # License
@@ -30,7 +30,7 @@
 ##------------------------------------------------------------------------------
 
 set boost_version=boost-system
-set cgal_version=CGAL-4.3
+set cgal_version=CGAL-4.6
 
 setenv BOOST_ARCH_PATH $WM_THIRD_PARTY_DIR/platforms/$WM_ARCH$WM_COMPILER/$boost_version
 setenv CGAL_ARCH_PATH $WM_THIRD_PARTY_DIR/platforms/$WM_ARCH$WM_COMPILER/$cgal_version
diff --git a/etc/config/CGAL.sh b/etc/config/CGAL.sh
index dc8772dd..7d495d01 100644
--- a/etc/config/CGAL.sh
+++ b/etc/config/CGAL.sh
@@ -2,7 +2,7 @@
 # =========                 |
 # \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
 #  \\    /   O peration     |
-#   \\  /    A nd           | Copyright (C) 2014 OpenFOAM Foundation
+#   \\  /    A nd           | Copyright (C) 2014-2015 OpenFOAM Foundation
 #    \\/     M anipulation  |
 #------------------------------------------------------------------------------
 # License
@@ -30,7 +30,7 @@
 #------------------------------------------------------------------------------
 
 boost_version=boost-system
-cgal_version=CGAL-4.3
+cgal_version=CGAL-4.6
 
 export BOOST_ARCH_PATH=$WM_THIRD_PARTY_DIR/platforms/$WM_ARCH$WM_COMPILER/$boost_version
 export CGAL_ARCH_PATH=$WM_THIRD_PARTY_DIR/platforms/$WM_ARCH$WM_COMPILER/$cgal_version
diff --git a/etc/config/scotch.sh b/etc/config/scotch.sh
index 1ee06e80..87d93842 100644
--- a/etc/config/scotch.sh
+++ b/etc/config/scotch.sh
@@ -2,7 +2,7 @@
 # =========                 |
 # \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
 #  \\    /   O peration     |
-#   \\  /    A nd           | Copyright (C) 2011-2012 OpenFOAM Foundation
+#   \\  /    A nd           | Copyright (C) 2011-2015 OpenFOAM Foundation
 #    \\/     M anipulation  |
 #------------------------------------------------------------------------------
 # License
@@ -33,7 +33,7 @@
 #     during the wmake process
 #------------------------------------------------------------------------------
 
-export SCOTCH_VERSION=scotch_6.0.0
+export SCOTCH_VERSION=scotch_6.0.3
 export SCOTCH_ARCH_PATH=$WM_THIRD_PARTY_DIR/platforms/$WM_ARCH$WM_COMPILER/$SCOTCH_VERSION
 
 # -----------------------------------------------------------------------------
diff --git a/etc/config/settings.csh b/etc/config/settings.csh
index e084af90..30c907f6 100644
--- a/etc/config/settings.csh
+++ b/etc/config/settings.csh
@@ -357,7 +357,7 @@ case SYSTEMOPENMPI:
     breaksw
 
 case OPENMPI:
-    setenv FOAM_MPI openmpi-1.6.5
+    setenv FOAM_MPI openmpi-1.8.5
     # optional configuration tweaks:
     _foamSource `$WM_PROJECT_DIR/bin/foamEtcFile config/openmpi.csh`
 
diff --git a/etc/config/settings.sh b/etc/config/settings.sh
index ae529022..ea2b03b4 100644
--- a/etc/config/settings.sh
+++ b/etc/config/settings.sh
@@ -377,7 +377,7 @@ SYSTEMOPENMPI)
     ;;
 
 OPENMPI)
-    export FOAM_MPI=openmpi-1.6.5
+    export FOAM_MPI=openmpi-1.8.5
     # optional configuration tweaks:
     _foamSource `$WM_PROJECT_DIR/bin/foamEtcFile config/openmpi.sh`
 
diff --git a/src/parallel/decompose/ptscotchDecomp/Make/options b/src/parallel/decompose/ptscotchDecomp/Make/options
index acdebd89..25ca6e9d 100644
--- a/src/parallel/decompose/ptscotchDecomp/Make/options
+++ b/src/parallel/decompose/ptscotchDecomp/Make/options
@@ -9,4 +9,4 @@ EXE_INC = \
     -I../decompositionMethods/lnInclude
 
 LIB_LIBS = \
-    -L$(SCOTCH_ROOT)/lib -L$(FOAM_EXT_LIBBIN)/$(FOAM_MPI) -lptscotch -lptscotcherrexit ${LINK_FLAGS} -lrt
+    -L$(SCOTCH_ROOT)/lib -L$(FOAM_EXT_LIBBIN)/$(FOAM_MPI) -lptscotch -lptscotcherrexit -lscotch ${LINK_FLAGS} -lrt