diff --git a/etc/settings.csh b/etc/settings.csh
index 6c4d5cb02d..627d7099a9 100644
--- a/etc/settings.csh
+++ b/etc/settings.csh
@@ -267,7 +267,7 @@ endif
 
 # CGAL and boost
 # ~~~~~~~~~~~~~~
-set cgal_version=3.5.1
+set cgal_version=3.6
 setenv CGAL_SRC $WM_THIRD_PARTY_DIR/CGAL-$cgal_version
 
 set boost_version=1_42_0
diff --git a/etc/settings.sh b/etc/settings.sh
index a72cae2027..d35dc50c8f 100644
--- a/etc/settings.sh
+++ b/etc/settings.sh
@@ -311,7 +311,7 @@ export MPI_BUFFER_SIZE
 
 # CGAL and boost
 # ~~~~~~~~~~~~~~
-cgal_version=3.5.1
+cgal_version=3.6
 export CGAL_SRC=$WM_THIRD_PARTY_DIR/CGAL-$cgal_version
 
 boost_version=1_42_0