diff --git a/scripts/travis/cmake.sh b/scripts/travis/cmake.sh
index b29c93eedb579625186cc9be54f810ab1b7dd51c..67a2dec3cf61ac5fe15048030fd25df30cc1af07 100644
--- a/scripts/travis/cmake.sh
+++ b/scripts/travis/cmake.sh
@@ -3,7 +3,7 @@ set -e
 # check to see if cmake folder is empty
 if [ ! -d "$HOME/cmake-3.1.1-Linux-x86_64/bin" ]; then
 	cd $HOME
-	wget http://www.cmake.org/files/v3.1/cmake-3.1.1-Linux-x86_64.tar.gz;
+	wget --no-check-certificate http://www.cmake.org/files/v3.1/cmake-3.1.1-Linux-x86_64.tar.gz;
 	tar -xzvf cmake-3.1.1-Linux-x86_64.tar.gz;
 else
 	echo 'Using cached cmake directory.';
diff --git a/scripts/travis/vtk.sh b/scripts/travis/vtk.sh
index 8d5cc23d86a447299e7822652a3d257df441265e..1a0b9562000d71ac5650fd7dcc7a84ea53229216 100644
--- a/scripts/travis/vtk.sh
+++ b/scripts/travis/vtk.sh
@@ -2,7 +2,7 @@
 set -e
 if [ ! -d "$HOME/VTK-Install/include" ]; then
 	cd $HOME
-	wget http://www.opengeosys.org/images/dev/vtk-6.1.0.tar.gz
+	wget --no-check-certificate http://www.opengeosys.org/images/dev/vtk-6.1.0.tar.gz
 	tar -xzf vtk-6.1.0.tar.gz
 else
   echo 'Using cached vtk directory.';