diff --git a/Models/model_host.py b/Models/model_host.py
index 486e68e..bfc25f9 100644
--- a/Models/model_host.py
+++ b/Models/model_host.py
@@ -11,12 +11,13 @@
 #py -mpip freeze | %{$_.split('==')[0]} | %{py -mpip install --upgrade $_}
 
 # installed 
-# py -mpip install flask
-# py -mpip install numpy
+# py -m pip install keras==2.6.0
+# py -mpip install flask==2.0.1
+# py -mpip install numpy==1.19.5
 # py -mpip show numpy 
-# py -mpip install tensorflow
+# py -mpip install tensorflow==2.6.0
 # py -mpip show tensorflow
-# py -mpip install matplotlib
+# py -mpip install matplotlib==3.4.3
 # c:\users\skess\appdata\local\programs\python\python39\lib\site-packages
 
 import keras