updated pip requirements

requirements.txt

@@ -1,24 +1,24 @@
 cachetools==3.1.1
-certifi==2019.3.9
+certifi==2019.9.11
 chardet==3.0.4
 Click==7.0
-Flask==1.0.3
-google-api-core==1.11.0
+Flask==1.1.1
+google-api-core==1.14.3
 google-auth==1.6.3
-google-cloud-core==0.29.1
-google-cloud-firestore==1.1.1
-googleapis-common-protos==1.5.8
-grpcio==1.21.1
+google-cloud-core==1.0.3
+google-cloud-firestore==1.4.0
+googleapis-common-protos==1.6.0
+grpcio==1.24.1
 idna==2.8
 itsdangerous==1.1.0
-Jinja2==2.10.1
+Jinja2==2.10.3
 MarkupSafe==1.1.1
-protobuf==3.8.0
-pyasn1==0.4.5
-pyasn1-modules==0.2.5
-pytz==2019.1
+protobuf==3.10.0
+pyasn1==0.4.7
+pyasn1-modules==0.2.6
+pytz==2019.3
 requests==2.22.0
 rsa==4.0
 six==1.12.0
-urllib3==1.25.3
-Werkzeug==0.15.4
+urllib3==1.25.6
+Werkzeug==0.16.0