diff --git a/webhooktranslator/setup.py b/webhooktranslator/setup.py
index 8e8bcd6ef..3f73fc5b8 100644
--- a/webhooktranslator/setup.py
+++ b/webhooktranslator/setup.py
@@ -10,7 +10,7 @@
     packages=find_packages(),
     install_requires=[
         'jira==1.0.10',
-        'flask==0.12.3',
+        'flask==1.0',
         'flup==1.0.2'
     ],
     entry_points={