diff --git a/setup.py b/setup.py
index d60167467..a57959845 100644
--- a/setup.py
+++ b/setup.py
@@ -71,20 +71,20 @@ setup(
         "h2>=3.2.0,<4",
         "hyperframe>=5.1.0,<6",
         "kaitaistruct>=0.7,<0.9",
-        "ldap3>=2.6.1,<2.7",
+        "ldap3>=2.6.1,<2.8",
         "passlib>=1.6.5, <1.8",
-        "protobuf>=3.6.0, <3.11",
+        "protobuf>=3.6.0, <3.12",
         "pyasn1>=0.3.1,<0.5",
         "pyOpenSSL>=19.1.0,<19.2",
         "pyparsing>=2.4.2,<2.5",
-        "pyperclip>=1.6.0,<1.8",
+        "pyperclip>=1.6.0,<1.9",
         "ruamel.yaml>=0.16,<0.17",
         "sortedcontainers>=2.1.0,<2.2",
         "tornado>=4.3,<7",
         "urwid>=2.1.0,<2.2",
-        "wsproto>=0.14.0,<0.15.0",
+        "wsproto>=0.14,<0.16",
         "publicsuffix2>=2.20190812,<3",
-        "zstandard>=0.11.0,<0.13.0",
+        "zstandard>=0.11,<0.14",
     ],
     extras_require={
         ':sys_platform == "win32"': [
diff --git a/tox.ini b/tox.ini
index 729d529a1..8513619fe 100644
--- a/tox.ini
+++ b/tox.ini
@@ -40,8 +40,8 @@ commands =
 passenv = CI_* GITHUB_* AWS_* TWINE_* DOCKER_*
 deps =
   -rrequirements.txt
-  pyinstaller==3.5
-  twine==2.0.0
+  pyinstaller==3.6
+  twine==3.1.1
   awscli
 commands =
   mitmdump --version