Update requirements.txt

Xing Han Lu · web-flow · commit fd8d06cc1efe · 2021-05-17T13:36:33.000-04:00
Former-commit-id: 8955eae
diff --git a/apps/dash-vtk-tutorials/requirements.txt b/apps/dash-vtk-tutorials/requirements.txt
@@ -1,6 +1,6 @@
-dash-vtk
+dash-vtk==0.0.9
 gunicorn
 dash
 dash-bootstrap-components
 vtk
-numpy
+numpy
