diff --git a/setup.py b/setup.py
index 633fd6a..d71a955 100644
--- a/setup.py
+++ b/setup.py
@@ -33,7 +33,7 @@
 
 install_requires = [
     'bump2version~=1.0',
-    "Flask>=0.12.3, <2.0.0",
+    "Flask>=0.12.3",
     "IDUtils~=1.0,>=1.0.1",
     "dojson~=1.0,>=1.3.1",
     "inspire-schemas~=61.4",