diff --git a/install/requirements-windows.txt b/install/requirements-windows.txt
index 65e4196e..005acc9f 100644
--- a/install/requirements-windows.txt
+++ b/install/requirements-windows.txt
@@ -1,18 +1,26 @@
+altgraph==0.16.1
+certifi==2018.8.24
+chardet==3.0.4
 click==6.7
-cryptography==2.3.1
-Flask==0.12.2
+Flask==1.0.2
 future==0.16.0
+idna==2.7
 itsdangerous==0.24
 Jinja2==2.10
+macholib==1.11
 MarkupSafe==1.0
-pefile==2017.11.5
-PyInstaller==3.3.1
-PyQt5==5.9.2
-PySocks==1.6.7
-pynacl==1.2.1
-pycrypto==2.6.1
-pysha3==1.0.2
+packaging==17.1
+pefile==2018.8.8
+PyInstaller==3.4
+pyparsing==2.2.0
+pypiwin32==223
+PyQt5==5.11.2
+PySocks==1.6.8
+python-dateutil==2.7.3
+pywin32==223
 requests==2.19.1
-sip==4.19.6
+sip==4.19.8
+six==1.11.0
 stem==1.6.0
+urllib3==1.23
 Werkzeug==0.14.1
diff --git a/install/requirements.txt b/install/requirements.txt
index 95ddb35a..16179eb7 100644
--- a/install/requirements.txt
+++ b/install/requirements.txt
@@ -1,16 +1,21 @@
+altgraph==0.16.1
+certifi==2018.8.24
+chardet==3.0.4
 click==6.7
-cryptography==2.3.1
-Flask==0.12.2
+Flask==1.0.2
+future==0.16.0
+idna==2.7
 itsdangerous==0.24
 Jinja2==2.10
+macholib==1.11
 MarkupSafe==1.0
-PyInstaller==3.3.1
-PyQt5==5.9.2
-PySocks==1.6.7
-pycrypto==2.6.1
-pynacl==1.2.1
-pysha3==1.0.2
+pefile==2018.8.8
+PyInstaller==3.4
+PyQt5==5.11.2
+PyQt5-sip==4.19.12
+PySocks==1.6.8
 requests==2.19.1
-sip==4.19.6
+sip==4.19.8
 stem==1.6.0
+urllib3==1.23
 Werkzeug==0.14.1
diff --git a/onionshare/web.py b/onionshare/web.py
index 221c2c53..e3e965da 100644
--- a/onionshare/web.py
+++ b/onionshare/web.py
@@ -33,6 +33,7 @@ from distutils.version import LooseVersion as Version
 from urllib.request import urlopen
 from datetime import datetime
 
+import flask
 from flask import (
     Flask, Response, Request, request, render_template, abort, make_response,
     flash, redirect, __version__ as flask_version
@@ -42,6 +43,15 @@ from werkzeug.utils import secure_filename
 from . import strings
 from .common import DownloadsDirErrorCannotCreate, DownloadsDirErrorNotWritable
 
+
+# Stub out flask's show_server_banner function, to avoiding showing warnings that
+# are not applicable to OnionShare
+def stubbed_show_server_banner(env, debug, app_import_path, eager_loading):
+    pass
+
+flask.cli.show_server_banner = stubbed_show_server_banner
+
+
 class Web(object):
     """
     The Web object is the OnionShare web server, powered by flask