diff --git a/.travis.yml b/.travis.yml
index 31ba0ccb..fa8ca64b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -11,7 +11,7 @@ before_install:
 install:
   - conda create -n testenv --yes pip python=$TRAVIS_PYTHON_VERSION
   - source activate testenv
-  - conda install --yes -c https://conda.binstar.org/twiecki numpy==1.8.1 scipy nose matplotlib pandas Cython patsy statsmodels tornado pyparsing xlrd mock pytz requests six dateutil ta-lib logbook
+  - conda install --yes -c https://conda.binstar.org/twiecki numpy==1.8.1 scipy=0.13.2 nose matplotlib pandas==0.12.0 Cython==0.20.1 patsy==0.2.1 statsmodels==0.5.0 tornado pyparsing xlrd mock pytz requests==2.3.0 six dateutil ta-lib logbook
   - grep pyflakes== etc/requirements_dev.txt | xargs pip install
   - grep pep8== etc/requirements_dev.txt | xargs pip install
   - grep mccabe== etc/requirements_dev.txt | xargs pip install