diff --git a/studio/install_python_stack.py b/studio/install_python_stack.py
index fb450a4b54..57c647d11a 100644
--- a/studio/install_python_stack.py
+++ b/studio/install_python_stack.py
@@ -58,8 +58,8 @@ PLATFORM_LACKS_TORCHCODEC_WHEEL = (
 # Detected ROCm (major, minor) -> best PyTorch wheel tag, checked newest-first (>=).
 _ROCM_TORCH_INDEX: dict[tuple[int, int], str] = {
     (7, 2): "rocm7.2",  # torch 2.11.0
-    (7, 1): "rocm7.1",  # torch 2.10.0
-    (7, 0): "rocm7.0",
+    (7, 1): "rocm7.1",  # torch 2.11.0
+    (7, 0): "rocm7.0",  # torch 2.10.0
     (6, 4): "rocm6.4",
     (6, 3): "rocm6.3",
     (6, 2): "rocm6.2",
@@ -97,14 +97,26 @@ _ROCM_GFX_TORCH211_LEAVES: frozenset[str] = frozenset(
 # rocmX.Y indexes KNOWN to ship torch 2.11; never floor an unknown newer rocm speculatively.
 _ROCM_KNOWN_TORCH211_VERSIONS: frozenset[tuple[int, int]] = frozenset({(7, 2)})
 
-# Per-tag pip specs; rocm7.2 ships torch 2.11.0 (older tags cap at 2.10.x).
+# Per-tag pip specs for the repair/update path; must land on the same wheels a fresh
+# install.sh run would pick, otherwise `studio update` silently downgrades the venv.
 _ROCM_TORCH_PKG_SPECS: dict[str, tuple[str, str, str]] = {
+    # Floored at 2.11 (the _grouped_mm bug), matching install.sh's rocm7.2|gfx* case.
     "rocm7.2": (
         "torch>=2.11.0,<2.12.0",
         "torchvision>=0.26.0,<0.27.0",
         "torchaudio>=2.11.0,<2.12.0",
     ),
-    # rocm7.1 and earlier: torch 2.x below 2.11
+    # rocm7.1 also serves a paired 2.11 trio (torch 2.11.0 / torchvision 0.26.0 /
+    # torchaudio 2.11.0), so it takes install.sh's widened DEFAULT range rather than
+    # the 2.11 floor: no _grouped_mm floor applies here, but capping at <2.11 would
+    # force-reinstall 2.10 over the 2.11 a fresh install just resolved.
+    "rocm7.1": (
+        "torch>=2.4,<2.12.0",
+        "torchvision>=0.19,<0.27.0",
+        "torchaudio>=2.4,<2.12.0",
+    ),
+    # rocm7.0 and earlier genuinely top out below 2.11 (rocm7.0: torch 2.10.0,
+    # rocm6.4/6.3: 2.9.1, rocm6.2: 2.5.1), so the old ceiling stays literal.
     "_default": (
         "torch>=2.4,<2.11.0",
         "torchvision>=0.19,<0.26.0",
diff --git a/tests/studio/install/test_rocm_support.py b/tests/studio/install/test_rocm_support.py
index 4f65857a3e..f8d2d4e374 100644
--- a/tests/studio/install/test_rocm_support.py
+++ b/tests/studio/install/test_rocm_support.py
@@ -3457,12 +3457,35 @@ class TestRocmTorchPkgSpecs:
         assert "2.11" in torch_spec
 
     def test_default_caps_below_211(self):
-        """Default spec (rocm7.1 and earlier) should cap below 2.11."""
+        """Default spec (rocm7.0 and earlier) should cap below 2.11."""
         specs = stack_mod._ROCM_TORCH_PKG_SPECS.get("_default")
         assert specs is not None
         torch_spec = specs[0]
         assert "<2.11" in torch_spec
 
+    def test_rocm71_repair_matches_install_sh_default_range(self):
+        """rocm7.1 serves a paired 2.11 trio, so the repair path must not cap at <2.11.
+
+        install.sh leaves a rocm7.1 leaf on its default trio (torch>=2.4,<2.12.0 /
+        torchvision>=0.19,<0.27.0 / torchaudio>=2.4,<2.12.0), which resolves
+        torch 2.11.0+rocm7.1 on that index. Falling back to _default here would
+        force-reinstall 2.10.0+rocm7.1 over it on the next `studio update`.
+        """
+        specs = stack_mod._ROCM_TORCH_PKG_SPECS.get("rocm7.1")
+        assert specs is not None, "rocm7.1 must have its own repair spec"
+        assert specs == (
+            "torch>=2.4,<2.12.0",
+            "torchvision>=0.19,<0.27.0",
+            "torchaudio>=2.4,<2.12.0",
+        )
+        # Not the rocm7.2 spec: no 2.11 floor applies to rocm7.1.
+        assert specs != stack_mod._ROCM_TORCH_PKG_SPECS["rocm7.2"]
+
+    def test_rocm71_is_not_a_known_211_floor_version(self):
+        """The widened rocm7.1 range must NOT promote it to a floored 2.11 line."""
+        assert (7, 1) not in stack_mod._ROCM_KNOWN_TORCH211_VERSIONS
+        assert (7, 2) in stack_mod._ROCM_KNOWN_TORCH211_VERSIONS
+
     def test_specs_have_torch_vision_audio(self):
         """Each entry should be a 3-tuple: torch, torchvision, torchaudio."""
         for tag, specs in stack_mod._ROCM_TORCH_PKG_SPECS.items():