diff --git a/setup.cfg b/setup.cfg
index b7dc04bb..8446f90c 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -37,7 +37,7 @@ install_requires =
     Flask-WTF~=0.14,>=0.14.3  # See b76da172652da94c1f9c4b2fdd965375da8a2c3f
     WTForms~=2.2.1,<2.3  # See #567
     Flask>=1.1,<3.0
-    itsdangerous~=1.1
+    itsdangerous>=1.1,<3.0
     Jinja2~=2.11
     requests~=2.22
     SQLAlchemy-Continuum~=1.3