diff --git a/.travis.yml b/.travis.yml
index 87c21154..bad18de1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -39,7 +39,7 @@ script:
 
 after_success:
   - codecov
-  - conda install sphinx
+  - conda install --yes sphinx
   - cd doc
   - make html
   - cd ../
diff --git a/doc/source/conf.py b/doc/source/conf.py
index 30835317..0925bf5c 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -49,8 +49,8 @@ extensions = [
 #            return Mock()
 
 #MOCK_MODULES = ['scipy.linalg.blas', 'blas', 'scipy.optimize', 'scipy.optimize.linesearch', 'scipy.linalg', 'scipy', 'scipy.special', 'scipy.integrate', 'scipy.io', 'scipy.stats', 'GPy.util.choleskies_cython',
-                'sympy', 'sympy.utilities.iterables', 'sympy.utilities.lambdify', 'sympy.utilities', 'sympy.utilities.codegen', 'sympy.core.cache', 'sympy.core', 'sympy.parsing', 'sympy.parsing.sympy_parser',
-                'nose', 'nose.tools']
+#                'sympy', 'sympy.utilities.iterables', 'sympy.utilities.lambdify', 'sympy.utilities', 'sympy.utilities.codegen', 'sympy.core.cache', 'sympy.core', 'sympy.parsing', 'sympy.parsing.sympy_parser',
+#                'nose', 'nose.tools']
 
 #sys.modules.update((mod_name, Mock()) for mod_name in MOCK_MODULES)