diff --git a/setup.py b/setup.py
index a9ddbca..9dc9126 100644
--- a/setup.py
+++ b/setup.py
@@ -12,7 +12,7 @@
 
 install_requires = [
     "APScheduler>=2.1.2,<3.10.0",
-    "Flask>=1.1.1",
+    "Flask>=1.1.1,<3.0.0",
     "SQLAlchemy>=1.3.15,<1.4.0",
     "requests>=2.23.0",
     "future",
@@ -30,9 +30,9 @@
     if sys.version_info[1] <= 6:
         install_requires.append("flask-login==0.5.0")
     else:
-        install_requires.append("flask-login==0.6.0")
+        install_requires.append("flask-login==0.6.2")
 
-    install_requires.append("Werkzeug>=1.0.0")
+    install_requires.append("Werkzeug>=1.0.0,<3.0.0")
 
 setup(
     name="ckanserviceprovider",