diff -Nur a/setup.py b/setup.py
--- a/setup.py	2021-07-16 16:24:38.000000000 +0800
+++ b/setup.py	2022-07-26 10:21:47.296522066 +0800
@@ -66,13 +66,13 @@
     # https://packaging.python.org/en/latest/requirements/#install-requires
     # It is not considered best practice to use install_requires to pin dependencies to specific versions.
     install_requires=[
-        "asgiref>=3.2.10,<3.5",
+        "asgiref>=3.2.10",
         "blinker>=1.4, <1.5",
         "Brotli>=1.0,<1.1",
         "certifi>=2019.9.11",  # no semver here - this should always be on the last release!
         "click>=7.0,<8.1",
-        "cryptography>=3.3,<3.5",
-        "flask>=1.1.1,<2.1",
+        "cryptography>=3.3",
+        "flask>=1.1.1",
         "h11>=0.11,<0.13",
         "h2>=4.0,<5",
         "hyperframe>=6.0,<7",
@@ -81,10 +81,10 @@
         "msgpack>=1.0.0, <1.1.0",
         "passlib>=1.6.5, <1.8",
         "protobuf>=3.14,<3.18",
-        "pyOpenSSL>=20.0,<20.1",
-        "pyparsing>=2.4.2,<2.5",
+        "pyOpenSSL>=20.0",
+        "pyparsing>=2.4.2",
         "pyperclip>=1.6.0,<1.9",
-        "ruamel.yaml>=0.16,<0.17.11",
+        "ruamel.yaml>=0.16",
         "sortedcontainers>=2.3,<2.5",
         "tornado>=4.3,<7",
         "urwid>=2.1.1,<2.2",