diff --git a/.travis.yml b/.travis.yml
index 588e2d0d3275810cb2ba314744ab39d5c519e02a..1b4af9891e60b148495d72d77ecea10657385555 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,7 +15,7 @@ matrix:
 before_install:
   - sudo add-apt-repository -y ppa:biometrics/bob
   - sudo apt-get update -qq
-  - sudo apt-get install -qq bob-dev
+  - sudo apt-get install -qq --force-yes bob-dev
   - if [ -n "${NUMPYSPEC}" ]; then sudo apt-get install -qq libatlas-dev libatlas-base-dev liblapack-dev gfortran; fi
   - if [ -n "${NUMPYSPEC}" ]; then pip install --upgrade pip setuptools; fi
   - if [ -n "${NUMPYSPEC}" ]; then pip install --find-links http://wheels.astropy.org/ --find-links http://wheels2.astropy.org/ --use-wheel numpy$NUMPYSPEC sphinx nose; fi