diff --git a/tox.ini b/tox.ini
index 8bae5ce5f..2f2cb2200 100644
--- a/tox.ini
+++ b/tox.ini
@@ -248,8 +248,10 @@ setenv =
 [testenv:pypy3]
 basepython = pypy3
 commands =
-    ; not enabling coverage as it significantly increases the run time
-    delta run -- {posargs:--durations=10 scrapy tests}
+    # Not using delta run: coverage is disabled in PyPy envs, so delta has no
+    # accurate mapping and falls back to the CPython mapping, causing unreliable
+    # test selection and surfacing pre-existing PyPy-specific failures.
+    pytest {posargs:--durations=10 scrapy tests}
 
 [testenv:pypy3-extra-deps]
 basepython = pypy3
@@ -286,8 +288,10 @@ passenv =
     DELTA_*
     GITHUB_*
 commands =
-    ; disabling coverage
-    delta run -- {posargs:--durations=10 scrapy tests}
+    # Not using delta run: coverage is disabled in PyPy envs, so delta has no
+    # accurate mapping and falls back to the CPython mapping, causing unreliable
+    # test selection and surfacing pre-existing PyPy/min-deps failures.
+    pytest {posargs:--durations=10 scrapy tests}
 setenv =
     {[min]setenv}