diff --git a/setup.py b/setup.py
--- a/setup.py
+++ b/setup.py
@@ -40,9 +40,9 @@ __platform__ = platform.system()
 is_windows = __platform__ in ['Windows']
 
 requirements = [
-    "alembic >= 1.0.10, < 1.1",
+    "alembic >= 1.0.10, < 1.5",
     "gearbox >= 0.1.0, < 1",
-    "waitress >= 0.8.8, < 1.4",
+    "waitress >= 0.8.8, < 1.5",
     "WebOb >= 1.8, < 1.9",
     "backlash >= 0.1.2, < 1",
     "TurboGears2 >= 2.4, < 2.5",
@@ -51,20 +51,20 @@ requirements = [
     "WebHelpers2 >= 2.0, < 2.1",
     "FormEncode >= 1.3.1, < 1.4",
     "SQLAlchemy >= 1.2.9, < 1.4",
-    "Mako >= 0.9.1, < 1.1",
-    "Pygments >= 2.2.0, < 2.5",
+    "Mako >= 0.9.1, < 1.2",
+    "Pygments >= 2.2.0, < 2.6",
     "Whoosh >= 2.7.1, < 2.8",
     "celery >= 3.1, < 4.0", # TODO: celery 4 doesn't work
-    "Babel >= 1.3, < 2.8",
+    "Babel >= 1.3, < 2.9",
     "python-dateutil >= 2.1.0, < 2.9",
     "Markdown >= 2.2.1, < 3.2",
-    "docutils >= 0.11, < 0.15",
+    "docutils >= 0.11, < 0.17",
     "URLObject >= 2.3.4, < 2.5",
     "Routes >= 2.0, < 2.5",
     "dulwich >= 0.19.0, < 0.20",
     "mercurial >= 5.2, < 5.4",
     "decorator >= 4.2.1, < 4.5",
-    "Paste >= 2.0.3, < 3.1",
+    "Paste >= 2.0.3, < 3.4",
     "bleach >= 3.0, < 3.2",
     "Click >= 7.0, < 8",
     "ipaddr >= 2.2.0, < 2.3",