@@ -24,10 +24,10 @@ google-auth==1.15.0
 google-auth-oauthlib==0.4.1
 google-pasta==0.2.0
 graphics.py==5.0.1.post1
-graphviz==0.14
+graphviz==0.8.4
 grpcio==1.29.0
 h5py==2.10.0
-idna==2.9
+idna==2.6
 importlib-metadata==1.6.0
 imutils==0.5.3
 ipykernel==5.3.0
@@ -63,7 +63,7 @@ nbformat==5.0.6
 nidaqmx==0.5.7
 notebook==6.1.5
 numba==0.49.1
-numpy==1.18.4
+numpy==1.16.0
 oauthlib==3.1.0
 open3d==0.10.0.1
 open3d-python==0.7.0.0
@@ -108,10 +108,10 @@ PyYAML==5.4
 pyzmq==19.0.1
 qtconsole==4.7.4
 QtPy==1.9.0
-requests==2.23.0
+requests==2.18.4
 requests-oauthlib==1.3.0
 robodk==4.2.4
-rsa==4.7
+rsa==4.0
 scipy==1.4.1
 Send2Trash==1.5.0
 six==1.15.0
@@ -124,7 +124,7 @@ tornado==6.0.4
 traitlets==4.3.3
 transformations==2020.1.1
 typed-ast==1.4.1
-urllib3==1.25.9
+urllib3==1.22.0
 wcwidth==0.1.9
 webencodings==0.5.1
 Werkzeug==1.0.1