diff --git a/tox.ini b/tox.ini
index 4cca042f..4968c0ed 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,39 +1,30 @@
 [tox]
 envlist=flake8,mypy,py3
 
-[testenv:py3]
+[testenv]
 deps =
   .[testing]
   .[listener]
   pytest-cov
 commands =
-  pytest --hypothesis-profile=fast \
-         --cov={envsitepackagesdir}/swh/storage \
-         {envsitepackagesdir}/swh/storage \
-         --cov-branch {posargs}
-
-[testenv:py3-slow]
-deps =
-  .[testing]
-  .[listener]
-  pytest-cov
-commands =
-  pytest --hypothesis-profile=slow \
+  pytest \
+    !slow: --hypothesis-profile=fast \
+    slow:  --hypothesis-profile=slow \
          --cov={envsitepackagesdir}/swh/storage \
          {envsitepackagesdir}/swh/storage \
          --cov-branch {posargs}
 
 [testenv:flake8]
 skip_install = true
 deps =
   flake8
 commands =
   {envpython} -m flake8
 
 [testenv:mypy]
 skip_install = true
 deps =
   .[testing]
   mypy
 commands =
   mypy swh