update dependencies

Author: danielenricocahall

requirements.txt

@@ -1,11 +1,8 @@
 Flask==1.0.2
 hyperas==0.4
-Keras==2.2.2
-Keras-Applications==1.0.4
-Keras-Preprocessing==1.0.2
-numpy==1.14.5
-pyspark==2.4.0
+Keras==2.2.4
+numpy==1.19.4
+pyspark==2.4.5
 six==1.11.0
 tensorflow==1.15.4
-networkx==1.1
 pydl4j>=0.1.3