diff --git a/.travis.yml b/.travis.yml
index 821bc733dd..d872f2da5c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,11 +17,11 @@ install:
     build-essential cmake python2.7 libpython2.7-dev swig zlib1g liblzma5 opencollada-dev wget apt-transport-https
   - sudo mkdir -p /usr/include/json/nlohmann/
   - sudo wget https://github.com/nlohmann/json/releases/download/v3.6.1/json.hpp -O /usr/include/json/nlohmann/json.hpp
-  - sudo sh -c 'curl https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add -'
-  - sudo sh -c 'curl https://storage.googleapis.com/download.dartlang.org/linux/debian/dart_stable.list > /etc/apt/sources.list.d/dart_stable.list'
-  - sudo apt-get update -qq && sudo apt-get install -y dart
-  - export PATH=$PATH:/usr/lib/dart/bin:$HOME/.pub-cache/bin
-  - git clone https://github.com/KhronosGroup/glTF-Validator && pushd glTF-Validator && pub get && pub global activate --source path ./ && popd
+  # - sudo sh -c 'curl https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add -'
+  # - sudo sh -c 'curl https://storage.googleapis.com/download.dartlang.org/linux/debian/dart_stable.list > /etc/apt/sources.list.d/dart_stable.list'
+  # - sudo apt-get update -qq && sudo apt-get install -y dart
+  # - export PATH=$PATH:/usr/lib/dart/bin:$HOME/.pub-cache/bin
+  # - git clone https://github.com/KhronosGroup/glTF-Validator && pushd glTF-Validator && pub get && pub global activate --source path ./ && popd
 
 script:
   - pwd
@@ -48,7 +48,7 @@ script:
   - cd input
   
   - /usr/local/bin/IfcConvert -yv acad2010_walls.ifc acad2010_walls.glb
-  - gltf_validator acad2010_walls.glb
+  # - gltf_validator acad2010_walls.glb
   
   - /usr/bin/python2.7 -c "from __future__ import print_function; from io import open; import ifcopenshell; f = ifcopenshell.open('encoding.ifc'); assert list(map(ord, f[1][0])) == [39, 97, 39, 32, 49, 109, 179, 32, 8804, 32, 53, 109, 179, 32, 8805, 32, 49, 48, 109, 179]"