diff --git a/.travis.yml b/.travis.yml
index 9417868..03ced1a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -26,7 +26,7 @@ before_install:
   - conda update --yes conda
 
 install:
-  - conda install --yes python=$TRAVIS_PYTHON_VERSION numpy scipy pysal scikit-learn
+  - conda install --yes python=$TRAVIS_PYTHON_VERSION numpy=1.11.0 scipy=0.17.1 pysal=1.11.1 scikit-learn=0.17.1
   - sudo make install
 
 script: make test
diff --git a/src/py/crankshaft/setup.py b/src/py/crankshaft/setup.py
index 266b6f1..2469637 100644
--- a/src/py/crankshaft/setup.py
+++ b/src/py/crankshaft/setup.py
@@ -40,7 +40,7 @@ setup(
 
     # The choice of component versions is dictated by what's
     # provisioned in the production servers.
-    install_requires=['numpy==1.11.0', 'scipy==0.17.1', 'pysal==1.9.1', 'scikit-learn==0.17.1'],
+    install_requires=['numpy==1.11.0', 'scipy==0.17.1', 'pysal==1.11.1', 'scikit-learn==0.17.1'],
 
     requires=['pysal', 'numpy', 'sklearn'],