diff --git a/var/spack/repos/builtin/packages/py-statsmodels/package.py b/var/spack/repos/builtin/packages/py-statsmodels/package.py
index 40594bf948..26de5ecbe0 100644
--- a/var/spack/repos/builtin/packages/py-statsmodels/package.py
+++ b/var/spack/repos/builtin/packages/py-statsmodels/package.py
@@ -13,14 +13,16 @@ class PyStatsmodels(PythonPackage):
     homepage = "http://www.statsmodels.org"
     pypi = "statsmodels/statsmodels-0.8.0.tar.gz"
 
+    version('0.12.1', sha256='a271b4ccec190148dccda25f0cbdcbf871f408fc1394a10a7dc1af4a62b91c8e')
     version('0.10.2', sha256='9cd2194c6642a8754e85f9a6e6912cdf996bebf6ff715d3cc67f65dadfd37cc9')
     version('0.10.1', sha256='320659a80f916c2edf9dfbe83512d9004bb562b72eedb7d9374562038697fa10')
     version('0.8.0', sha256='26431ab706fbae896db7870a0892743bfbb9f5c83231644692166a31d2d86048')
 
     variant('plotting', default=False, description='With matplotlib')
 
-    depends_on('python@:3.6',     when='@:0.8.0',  type=('build', 'run'))
+    depends_on('python@:3.6',         when='@:0.8.0',  type=('build', 'run'))
     depends_on('python@2.7:2.8,3.4:', when='@0.10.1:', type=('build', 'run'))
+    depends_on('python@3.6:',         when='@0.12.1:', type=('build', 'run'))
 
     # according to http://www.statsmodels.org/dev/install.html earlier versions
     # might work.
@@ -32,12 +34,16 @@ class PyStatsmodels(PythonPackage):
 
     depends_on('py-numpy@1.7.0:',      type=('build', 'run'), when='@0.8.0:')
     depends_on('py-numpy@1.11.0:',     type=('build', 'run'), when='@0.10.1:')
+    depends_on('py-numpy@1.15.0:',     type=('build', 'run'), when='@0.12.1:')
     depends_on('py-pandas@0.12:',      type=('build', 'run'), when='@0.8.0:')
     depends_on('py-pandas@0.19:',      type=('build', 'run'), when='@0.10.1:')
+    depends_on('py-pandas@0.21:',      type=('build', 'run'), when='@0.12.1:')
     depends_on('py-patsy@0.2.1:',      type=('build', 'run'), when='@0.8.0:')
     depends_on('py-patsy@0.4.0:',      type=('build', 'run'), when='@0.10.1:')
+    depends_on('py-patsy@0.5.0:',      type=('build', 'run'), when='@0.12.1:')
     depends_on('py-scipy@0.11:',       type=('build', 'run'), when='@0.8.0:')
     depends_on('py-scipy@0.18:',       type=('build', 'run'), when='@0.10.1:')
+    depends_on('py-scipy@1.1:',        type=('build', 'run'), when='@0.12.1:')
     depends_on('py-matplotlib@1.3:',   type=('build', 'run'), when='@0.8.0 +plotting')
 
     depends_on('py-pytest', type='test')