diff --git a/.travis.yml b/.travis.yml
index 33aca5703..85dc67618 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -30,7 +30,7 @@ before_install:
   - conda config --set always_yes yes --set changeps1 no
   - conda update -q conda
   # conda-build must be installed in the conda root environment
-  - conda install conda-build
+  - conda install conda-build=2.1.17
   - conda config --add channels python-control
   - conda info -a
   - conda create -q -n test-environment python="$TRAVIS_PYTHON_VERSION" pip coverage