diff --git a/.github/workflows/tox.yml b/.github/workflows/tox.yml
index 740cc0b..3ab66b2 100644
--- a/.github/workflows/tox.yml
+++ b/.github/workflows/tox.yml
@@ -24,5 +24,5 @@ jobs:
         docs
         lint
         pkg
-        py313-milestone
+        py313-devel
         py-mise:tox -e py:mise=true
diff --git a/tox.ini b/tox.ini
index 0816818..a67d975 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,20 +1,24 @@
 [tox]
 requires =
     setuptools>=65.3
-    tox>=4.11.3
-    tox-uv>=1.16
+    tox>=4.25
+    tox-extra>=2.1
+    tox-uv>=1.25
 env_list =
     py
     deps
     docs
     lint
-    milestone
+    devel
     pkg
 skip_missing_interpreters = true
 
 [testenv]
-description = Run pytest under {basepython}
+description = Run pytest
+    devel: with development dependencies
 package = editable
+deps =
+    devel: ansible-core@ git+https://github.com/ansible/ansible.git
 extras =
     test
 pass_env =
@@ -29,14 +33,16 @@ pass_env =
     TERM
     USER
 set_env =
-    !milestone: PIP_CONSTRAINT = {toxinidir}/.config/constraints.txt
-    !milestone: UV_CONSTRAINT = {toxinidir}/.config/constraints.txt
     COVERAGE_COMBINED = {envdir}/.coverage
-    COVERAGE_FILE = {env:COVERAGE_FILE:{envdir}/.coverage.{envname}}
+    COVERAGE_FILE = {env:COVERAGE_FILE:{env_dir}/.coverage.{envname}}
     COVERAGE_PROCESS_START = {toxinidir}/pyproject.toml
     FORCE_COLOR = 1
+    PIP_CONSTRAINT = {toxinidir}/.config/constraints.txt
     PRE_COMMIT_COLOR = always
     TERM = xterm-256color
+    UV_CONSTRAINT = {toxinidir}/.config/constraints.txt
+    deps, devel: PIP_CONSTRAINT = /dev/null
+    deps, devel: UV_CONSTRAINT = /dev/null
 commands_pre =
     sh -c "rm -f {envdir}/.coverage* 2>/dev/null || true"
 commands =
@@ -91,15 +97,6 @@ set_env =
 commands =
     pre-commit run --show-diff-on-failure --all-files
 
-[testenv:milestone]
-description =
-    Run tests with ansible-core milestone branch and without dependencies constraints
-deps =
-    ansible-core@ https://github.com/ansible/ansible/archive/milestone.tar.gz
-set_env =
-    {[testenv]set_env}
-    PIP_CONSTRAINT = /dev/null
-
 [testenv:pkg]
 description =
     Do packaging/distribution