diff --git a/cibuildwheel/macos.py b/cibuildwheel/macos.py
index 744c0840e..eb648c4a6 100644
--- a/cibuildwheel/macos.py
+++ b/cibuildwheel/macos.py
@@ -260,13 +260,15 @@ def setup_python(
     # Set MACOSX_DEPLOYMENT_TARGET, if the user didn't set it.
     # For arm64, the minimal deployment target is 11.0.
     # On x86_64 (or universal2), use 10.9 as a default.
-    # PyPy needs 10.10. CPython 3.13 needs 10.13.
+    # CPython 3.13 needs 10.13.
     if config_is_arm64:
         default_target = "11.0"
     elif Version(python_configuration.version) >= Version("3.13"):
         default_target = "10.13"
-    elif python_configuration.identifier.startswith("pp"):
-        default_target = "10.10"
+    elif python_configuration.identifier.startswith("pp") and Version(
+        python_configuration.version
+    ) >= Version("3.9"):
+        default_target = "10.15"
     else:
         default_target = "10.9"
     env.setdefault("MACOSX_DEPLOYMENT_TARGET", default_target)
diff --git a/test/utils.py b/test/utils.py
index 5cd5158f5..5ecc98f56 100644
--- a/test/utils.py
+++ b/test/utils.py
@@ -137,17 +137,11 @@ def cibuildwheel_run(
     return wheels
 
 
-def _get_arm64_macosx_deployment_target(macosx_deployment_target: str) -> str:
+def _floor_macosx_deployment_target(*args: str) -> str:
     """
-    The first version of macOS that supports arm is 11.0. So the wheel tag
-    cannot contain an earlier deployment target, even if
-    MACOSX_DEPLOYMENT_TARGET sets it.
+    Make sure a deployment target is not less than some value.
     """
-    version_tuple = tuple(map(int, macosx_deployment_target.split(".")))
-    if version_tuple <= (11, 0):
-        return "11.0"
-    else:
-        return macosx_deployment_target
+    return max(args, key=lambda x: tuple(map(int, x.split("."))))
 
 
 def expected_wheels(
@@ -282,11 +276,22 @@ def expected_wheels(
 
         elif platform == "macos":
             if machine_arch == "arm64":
-                arm64_macosx_deployment_target = _get_arm64_macosx_deployment_target(
-                    macosx_deployment_target
+                arm64_macosx_deployment_target = _floor_macosx_deployment_target(
+                    macosx_deployment_target, "11.0"
                 )
                 platform_tags = [f'macosx_{arm64_macosx_deployment_target.replace(".", "_")}_arm64']
             else:
+                if python_abi_tag.startswith("pp") and not python_abi_tag.startswith(
+                    ("pp37", "pp38")
+                ):
+                    macosx_deployment_target = _floor_macosx_deployment_target(
+                        macosx_deployment_target, "10.15"
+                    )
+                elif python_abi_tag.startswith("cp3.13"):
+                    macosx_deployment_target = _floor_macosx_deployment_target(
+                        macosx_deployment_target, "10.13"
+                    )
+
                 platform_tags = [f'macosx_{macosx_deployment_target.replace(".", "_")}_x86_64']
 
             if include_universal2: