diff --git a/dface/core/detect.py b/dface/core/detect.py
index 6d5cefa..5b64407 100644
--- a/dface/core/detect.py
+++ b/dface/core/detect.py
@@ -14,23 +14,30 @@ def create_mtcnn_net(p_model_path=None, r_model_path=None, o_model_path=None, us
 
     if p_model_path is not None:
         pnet = PNet(use_cuda=use_cuda)
-        pnet.load_state_dict(torch.load(p_model_path))
         if(use_cuda):
+            pnet.load_state_dict(torch.load(p_model_path))
             pnet.cuda()
+        else:
+            # forcing all GPU tensors to be in CPU while loading
+            pnet.load_state_dict(torch.load(p_model_path, map_location=lambda storage, loc: storage))
         pnet.eval()
 
     if r_model_path is not None:
         rnet = RNet(use_cuda=use_cuda)
-        rnet.load_state_dict(torch.load(r_model_path))
         if (use_cuda):
+            rnet.load_state_dict(torch.load(r_model_path))
             rnet.cuda()
+        else:
+            rnet.load_state_dict(torch.load(r_model_path, map_location=lambda storage, loc: storage))
         rnet.eval()
 
     if o_model_path is not None:
         onet = ONet(use_cuda=use_cuda)
-        onet.load_state_dict(torch.load(o_model_path))
         if (use_cuda):
+            onet.load_state_dict(torch.load(o_model_path))
             onet.cuda()
+        else:
+            onet.load_state_dict(torch.load(o_model_path, map_location=lambda storage, loc: storage))
         onet.eval()
 
     return pnet,rnet,onet
diff --git a/environment_osx.yaml b/environment_osx.yaml
new file mode 100644
index 0000000..0c579cf
--- /dev/null
+++ b/environment_osx.yaml
@@ -0,0 +1,76 @@
+name: dface
+channels:
+- pytorch
+- defaults
+dependencies:
+- backports=1.0=py27hb4f9756_1
+- backports.functools_lru_cache=1.4=py27h2aca819_1
+- backports_abc=0.5=py27h6972548_0
+- bzip2=1.0.6=h649919c_2
+- ca-certificates=2017.08.26=ha1e5d58_0
+- cairo=1.14.10=h913ea44_6
+- certifi=2017.11.5=py27hfa9a1c4_0
+- cffi=1.11.4=py27h342bebf_0
+- cycler=0.10.0=py27hfc73c78_0
+- ffmpeg=3.4=h766ddd1_0
+- fontconfig=2.12.4=hffb9db1_2
+- freetype=2.8=h12048fb_1
+- functools32=3.2.3.2=py27h8ceab06_1
+- gettext=0.19.8.1=h15daf44_3
+- glib=2.53.6=h33f6a65_2
+- graphite2=1.3.10=h233cf8b_0
+- harfbuzz=1.5.0=h6db888e_0
+- hdf5=1.10.1=ha036c08_1
+- icu=58.2=h4b95b61_1
+- intel-openmp=2018.0.0=h8158457_8
+- jasper=1.900.1=h1f36771_4
+- jpeg=9b=he5867d9_2
+- libcxx=4.0.1=h579ed51_0
+- libcxxabi=4.0.1=hebd6815_0
+- libedit=3.1=hb4e282d_0
+- libffi=3.2.1=h475c297_4
+- libgfortran=3.0.1=h93005f0_2
+- libiconv=1.15=hdd342a3_7
+- libopus=1.2.1=h169cedb_0
+- libpng=1.6.32=hd1e8b91_4
+- libprotobuf=3.4.1=h326466f_0
+- libtiff=4.0.9=h0dac147_0
+- libvpx=1.6.1=h057a404_0
+- libxml2=2.9.4=hf05c021_6
+- matplotlib=2.1.1=py27hb768455_0
+- mkl=2018.0.1=hfbd8650_4
+- ncurses=6.0=hd04f020_2
+- numpy=1.14.0=py27h8a80b8c_0
+- olefile=0.44=py27h73ba740_0
+- opencv=3.3.1=py27h60a5f38_1
+- openssl=1.0.2n=hdbc3d79_0
+- pcre=8.41=hfb6ab37_1
+- pillow=5.0.0=py27hfcce615_0
+- pip=9.0.1=py27h1567d89_4
+- pixman=0.34.0=hca0a616_3
+- pycparser=2.18=py27h0d28d88_1
+- pyparsing=2.2.0=py27h5bb6aaf_0
+- python=2.7.14=hde5916a_29
+- python-dateutil=2.6.1=py27hd56c96b_1
+- pytz=2017.3=py27h803c07a_0
+- readline=7.0=hc1231fa_4
+- setuptools=38.4.0=py27_0
+- singledispatch=3.4.0.3=py27he22c18d_0
+- six=1.11.0=py27h7252ba3_1
+- sqlite=3.20.1=h7e4c145_2
+- ssl_match_hostname=3.5.0.1=py27h8780752_2
+- subprocess32=3.2.7=py27h24b2887_0
+- tk=8.6.7=h35a86e2_3
+- tornado=4.5.3=py27_0
+- wheel=0.30.0=py27h677a027_1
+- xz=5.2.3=h0278029_2
+- zlib=1.2.11=hf3cbc9b_2
+- pytorch=0.3.0=py27_cuda0.0_cudnn0.0he480db7_4
+- torchvision=0.2.0=py27hfc0307a_1
+- pip:
+  - backports-abc==0.5
+  - backports.functools-lru-cache==1.4
+  - backports.ssl-match-hostname==3.5.0.1
+  - torch==0.3.0.post4
+prefix: /Users/hfu/anaconda2/envs/dface
+