diff --git a/tox.ini b/tox.ini
index 6d705ba..55d816b 100644
--- a/tox.ini
+++ b/tox.ini
@@ -25,7 +25,7 @@ passenv =
 deps =
     bashate>=0.5.1 # Apache-2.0
     flake8-import-order>=0.17.1 # LGPLv3
-    hacking>=4.1.0,<5.0.0 # Apache-2.0
+    hacking~=6.0.0 # Apache-2.0
     pycodestyle>=2.0.0,<3.0.0 # MIT
 allowlist_externals = bash
                       {toxinidir}/tools/run_bashate.sh