Fix: lib vulnearability

Author: sahupankaj10

requirement.txt

@@ -13,7 +13,7 @@ ipython==7.2.0
 ipython-genutils==0.2.0
 ipywidgets==7.4.2
 jedi==0.13.2
-Jinja2==2.10
+Jinja2>=2.10
 jsonschema==2.6.0
 jupyter==1.0.0
 jupyter-client==5.2.4
@@ -28,12 +28,12 @@ mpmath==1.1.0
 nbconvert==5.4.0
 nbformat==4.4.0
 nltk==3.3
-notebook==5.7.4
+notebook>=5.7.8
 numpy==1.12.1
 packaging==16.8
 pandas==0.19.2
 pandocfilters==1.4.2
-parso==0.3.1
+parso>=0.5.1
 pexpect==4.6.0
 pickleshare==0.7.5
 prometheus-client==0.5.0
@@ -50,7 +50,7 @@ scipy==0.19.0
 Send2Trash==1.5.0
 six==1.10.0
 soupsieve==1.6.2
-SQLAlchemy==1.2.15
+SQLAlchemy>=1.3.5
 sympy==1.3
 terminado==0.8.1
 testpath==0.4.2