diff --git a/pixi.lock b/pixi.lock
index 94cd02af..e2e986ec 100644
--- a/pixi.lock
+++ b/pixi.lock
@@ -234,7 +234,7 @@ environments:
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       - conda: https://prefix.dev/conda-forge/linux-64/mpfr-4.2.1-h90cbb55_3.conda
       - conda: https://prefix.dev/conda-forge/noarch/mpmath-1.3.0-pyhd8ed1ab_1.conda
-      - conda: https://prefix.dev/conda-forge/linux-64/mypy-1.19.1-py314h5bd0f2a_0.conda
+      - conda: https://prefix.dev/conda-forge/linux-64/mypy-1.20.1-py314h5bd0f2a_0.conda
       - conda: https://prefix.dev/conda-forge/noarch/mypy_extensions-1.1.0-pyha770c72_0.conda
       - conda: https://prefix.dev/conda-forge/noarch/myst-parser-5.0.0-pyhd8ed1ab_0.conda
       - conda: https://prefix.dev/conda-forge/linux-64/ncurses-6.5-h2d0b736_3.conda
@@ -422,7 +422,7 @@ environments:
       - conda: https://prefix.dev/conda-forge/osx-64/mpc-1.3.1-h9d8efa1_1.conda
       - conda: https://prefix.dev/conda-forge/osx-64/mpfr-4.2.1-haed47dc_3.conda
       - conda: https://prefix.dev/conda-forge/noarch/mpmath-1.3.0-pyhd8ed1ab_1.conda
-      - conda: https://prefix.dev/conda-forge/osx-64/mypy-1.19.1-py314h6482030_0.conda
+      - conda: https://prefix.dev/conda-forge/osx-64/mypy-1.20.1-py314h217eccc_0.conda
       - conda: https://prefix.dev/conda-forge/noarch/mypy_extensions-1.1.0-pyha770c72_0.conda
       - conda: https://prefix.dev/conda-forge/noarch/myst-parser-5.0.0-pyhd8ed1ab_0.conda
       - conda: https://prefix.dev/conda-forge/osx-64/ncurses-6.5-h0622a9a_3.conda
@@ -605,7 +605,7 @@ environments:
       - conda: https://prefix.dev/conda-forge/osx-arm64/mpc-1.3.1-h8f1351a_1.conda
       - conda: https://prefix.dev/conda-forge/osx-arm64/mpfr-4.2.1-hb693164_3.conda
       - conda: https://prefix.dev/conda-forge/noarch/mpmath-1.3.0-pyhd8ed1ab_1.conda
-      - conda: https://prefix.dev/conda-forge/osx-arm64/mypy-1.19.1-py314hbdd0d06_0.conda
+      - conda: https://prefix.dev/conda-forge/osx-arm64/mypy-1.20.1-py314hbdd0d06_0.conda
       - conda: https://prefix.dev/conda-forge/noarch/mypy_extensions-1.1.0-pyha770c72_0.conda
       - conda: https://prefix.dev/conda-forge/noarch/myst-parser-5.0.0-pyhd8ed1ab_0.conda
       - conda: https://prefix.dev/conda-forge/osx-arm64/ncurses-6.5-h5e97a16_3.conda
@@ -770,7 +770,7 @@ environments:
       - conda: https://prefix.dev/conda-forge/noarch/meson-python-0.19.0-pyh7e86bf3_2.conda
       - conda: https://prefix.dev/conda-forge/win-64/mkl-2025.3.0-hac47afa_455.conda
       - conda: https://prefix.dev/conda-forge/noarch/mpmath-1.4.0-pyhd8ed1ab_0.conda
-      - conda: https://prefix.dev/conda-forge/win-64/mypy-1.19.1-py314h5a2d7ad_0.conda
+      - conda: https://prefix.dev/conda-forge/win-64/mypy-1.20.1-py314h5a2d7ad_0.conda
       - conda: https://prefix.dev/conda-forge/noarch/mypy_extensions-1.1.0-pyha770c72_0.conda
       - conda: https://prefix.dev/conda-forge/noarch/myst-parser-5.0.0-pyhd8ed1ab_0.conda
       - conda: https://prefix.dev/conda-forge/noarch/networkx-3.6.1-pyhcf101f3_0.conda
@@ -1006,7 +1006,7 @@ environments:
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       - conda: https://prefix.dev/conda-forge/linux-64/mpfr-4.2.1-h90cbb55_3.conda
       - conda: https://prefix.dev/conda-forge/noarch/mpmath-1.3.0-pyhd8ed1ab_1.conda
-      - conda: https://prefix.dev/conda-forge/linux-64/mypy-1.19.1-py314h5bd0f2a_0.conda
+      - conda: https://prefix.dev/conda-forge/linux-64/mypy-1.20.1-py314h5bd0f2a_0.conda
       - conda: https://prefix.dev/conda-forge/noarch/mypy_extensions-1.1.0-pyha770c72_0.conda
       - conda: https://prefix.dev/conda-forge/noarch/myst-parser-5.0.0-pyhd8ed1ab_0.conda
       - conda: https://prefix.dev/conda-forge/linux-64/nccl-2.29.3.1-h4d09622_0.conda
@@ -1197,7 +1197,7 @@ environments:
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       - conda: https://prefix.dev/conda-forge/osx-64/mpfr-4.2.1-haed47dc_3.conda
       - conda: https://prefix.dev/conda-forge/noarch/mpmath-1.3.0-pyhd8ed1ab_1.conda
-      - conda: https://prefix.dev/conda-forge/osx-64/mypy-1.19.1-py314h6482030_0.conda
+      - conda: https://prefix.dev/conda-forge/osx-64/mypy-1.20.1-py314h217eccc_0.conda
       - conda: https://prefix.dev/conda-forge/noarch/mypy_extensions-1.1.0-pyha770c72_0.conda
       - conda: https://prefix.dev/conda-forge/noarch/myst-parser-5.0.0-pyhd8ed1ab_0.conda
       - conda: https://prefix.dev/conda-forge/osx-64/ncurses-6.5-h0622a9a_3.conda
@@ -1380,7 +1380,7 @@ environments:
       - conda: https://prefix.dev/conda-forge/osx-arm64/mpc-1.3.1-h8f1351a_1.conda
       - conda: https://prefix.dev/conda-forge/osx-arm64/mpfr-4.2.1-hb693164_3.conda
       - conda: https://prefix.dev/conda-forge/noarch/mpmath-1.3.0-pyhd8ed1ab_1.conda
-      - conda: https://prefix.dev/conda-forge/osx-arm64/mypy-1.19.1-py314hbdd0d06_0.conda
+      - conda: https://prefix.dev/conda-forge/osx-arm64/mypy-1.20.1-py314hbdd0d06_0.conda
       - conda: https://prefix.dev/conda-forge/noarch/mypy_extensions-1.1.0-pyha770c72_0.conda
       - conda: https://prefix.dev/conda-forge/noarch/myst-parser-5.0.0-pyhd8ed1ab_0.conda
       - conda: https://prefix.dev/conda-forge/osx-arm64/ncurses-6.5-h5e97a16_3.conda
@@ -1565,7 +1565,7 @@ environments:
       - conda: https://prefix.dev/conda-forge/noarch/meson-python-0.19.0-pyh7e86bf3_2.conda
       - conda: https://prefix.dev/conda-forge/win-64/mkl-2025.3.0-hac47afa_455.conda
       - conda: https://prefix.dev/conda-forge/noarch/mpmath-1.4.0-pyhd8ed1ab_0.conda
-      - conda: https://prefix.dev/conda-forge/win-64/mypy-1.19.1-py314h5a2d7ad_0.conda
+      - conda: https://prefix.dev/conda-forge/win-64/mypy-1.20.1-py314h5a2d7ad_0.conda
       - conda: https://prefix.dev/conda-forge/noarch/mypy_extensions-1.1.0-pyha770c72_0.conda
       - conda: https://prefix.dev/conda-forge/noarch/myst-parser-5.0.0-pyhd8ed1ab_0.conda
       - conda: https://prefix.dev/conda-forge/noarch/networkx-3.6.1-pyhcf101f3_0.conda
@@ -2115,7 +2115,7 @@ environments:
       - conda: https://prefix.dev/conda-forge/noarch/mccabe-0.7.0-pyhd8ed1ab_1.conda
       - conda: https://prefix.dev/conda-forge/noarch/meson-1.10.1-pyhcf101f3_0.conda
       - conda: https://prefix.dev/conda-forge/noarch/meson-python-0.19.0-pyh7e86bf3_2.conda
-      - conda: https://prefix.dev/conda-forge/linux-64/mypy-1.19.1-py314h5bd0f2a_0.conda
+      - conda: https://prefix.dev/conda-forge/linux-64/mypy-1.20.1-py314h5bd0f2a_0.conda
       - conda: https://prefix.dev/conda-forge/noarch/mypy_extensions-1.1.0-pyha770c72_0.conda
       - conda: https://prefix.dev/conda-forge/linux-64/ncurses-6.5-h2d0b736_3.conda
       - conda: https://prefix.dev/conda-forge/linux-64/ninja-1.13.2-h171cf75_0.conda
@@ -2238,7 +2238,7 @@ environments:
       - conda: https://prefix.dev/conda-forge/noarch/mccabe-0.7.0-pyhd8ed1ab_1.conda
       - conda: https://prefix.dev/conda-forge/noarch/meson-1.10.1-pyhcf101f3_0.conda
       - conda: https://prefix.dev/conda-forge/noarch/meson-python-0.19.0-pyh7e86bf3_2.conda
-      - conda: https://prefix.dev/conda-forge/osx-64/mypy-1.19.1-py314h6482030_0.conda
+      - conda: https://prefix.dev/conda-forge/osx-64/mypy-1.20.1-py314h217eccc_0.conda
       - conda: https://prefix.dev/conda-forge/noarch/mypy_extensions-1.1.0-pyha770c72_0.conda
       - conda: https://prefix.dev/conda-forge/osx-64/ncurses-6.5-h0622a9a_3.conda
       - conda: https://prefix.dev/conda-forge/osx-64/ninja-1.13.2-hfc0b2d5_0.conda
@@ -2361,7 +2361,7 @@ environments:
       - conda: https://prefix.dev/conda-forge/noarch/mccabe-0.7.0-pyhd8ed1ab_1.conda
       - conda: https://prefix.dev/conda-forge/noarch/meson-1.10.1-pyhcf101f3_0.conda
       - conda: https://prefix.dev/conda-forge/noarch/meson-python-0.19.0-pyh7e86bf3_2.conda
-      - conda: https://prefix.dev/conda-forge/osx-arm64/mypy-1.19.1-py314hbdd0d06_0.conda
+      - conda: https://prefix.dev/conda-forge/osx-arm64/mypy-1.20.1-py314hbdd0d06_0.conda
       - conda: https://prefix.dev/conda-forge/noarch/mypy_extensions-1.1.0-pyha770c72_0.conda
       - conda: https://prefix.dev/conda-forge/osx-arm64/ncurses-6.5-h5e97a16_3.conda
       - conda: https://prefix.dev/conda-forge/osx-arm64/ninja-1.13.2-h49c215f_0.conda
@@ -2476,7 +2476,7 @@ environments:
       - conda: https://prefix.dev/conda-forge/noarch/meson-1.10.1-pyhcf101f3_0.conda
       - conda: https://prefix.dev/conda-forge/noarch/meson-python-0.19.0-pyh7e86bf3_2.conda
       - conda: https://prefix.dev/conda-forge/win-64/mkl-2025.3.0-hac47afa_455.conda
-      - conda: https://prefix.dev/conda-forge/win-64/mypy-1.19.1-py314h5a2d7ad_0.conda
+      - conda: https://prefix.dev/conda-forge/win-64/mypy-1.20.1-py314h5a2d7ad_0.conda
       - conda: https://prefix.dev/conda-forge/noarch/mypy_extensions-1.1.0-pyha770c72_0.conda
       - conda: https://prefix.dev/conda-forge/win-64/ninja-1.13.2-h477610d_0.conda
       - conda: https://prefix.dev/conda-forge/win-64/nodejs-25.6.1-he453025_0.conda
@@ -10355,71 +10355,71 @@ packages:
   - pkg:pypi/mpmath?source=compressed-mapping
   size: 464419
   timestamp: 1771870721583
-- conda: https://prefix.dev/conda-forge/linux-64/mypy-1.19.1-py314h5bd0f2a_0.conda
-  sha256: 4e607095b92cac2ec6dbb8de348d8e006408291c9c2805926f01e4a30e94edbb
-  md5: 0490f2b08d179719201fdb9514d67157
+- conda: https://prefix.dev/conda-forge/linux-64/mypy-1.20.1-py314h5bd0f2a_0.conda
+  sha256: 98ce082952223b2a0d41b2343e1f236b8a82f89a227f3fe529756c7ffdc65369
+  md5: ecf49313f1d3ffb37b71f7ba0f7e9809
   depends:
   - __glibc >=2.17,<3.0.a0
   - libgcc >=14
   - mypy_extensions >=1.0.0
-  - pathspec >=0.9.0
+  - pathspec >=1.0.0
   - psutil >=4.0
   - python >=3.14,<3.15.0a0
-  - python-librt >=0.6.2
+  - python-librt >=0.8.0
   - python_abi 3.14.* *_cp314
   - typing_extensions >=4.6.0
   license: MIT
   license_family: MIT
   purls:
-  - pkg:pypi/mypy?source=hash-mapping
-  size: 18632958
-  timestamp: 1765795548407
-- conda: https://prefix.dev/conda-forge/osx-64/mypy-1.19.1-py314h6482030_0.conda
-  sha256: b36d3a5728413d18dedfecdfd0248647b21f3e725547c03ef245bc1c08da98f8
-  md5: 62c7130c7f42ab43c9d1d64bbc7c2f3e
+  - pkg:pypi/mypy?source=compressed-mapping
+  size: 20295524
+  timestamp: 1776069509844
+- conda: https://prefix.dev/conda-forge/osx-64/mypy-1.20.1-py314h217eccc_0.conda
+  sha256: dadb1aeed1733b6860a84078c48f0cf98d2aac20cf800e2639245150620c8b20
+  md5: 6d1e019eb391b1af2dc8b2af5ffe60c8
   depends:
-  - __osx >=10.13
+  - __osx >=11.0
   - mypy_extensions >=1.0.0
-  - pathspec >=0.9.0
+  - pathspec >=1.0.0
   - psutil >=4.0
   - python >=3.14,<3.15.0a0
-  - python-librt >=0.6.2
+  - python-librt >=0.8.0
   - python_abi 3.14.* *_cp314
   - typing_extensions >=4.6.0
   license: MIT
   license_family: MIT
   purls:
   - pkg:pypi/mypy?source=hash-mapping
-  size: 12043718
-  timestamp: 1765796036801
-- conda: https://prefix.dev/conda-forge/osx-arm64/mypy-1.19.1-py314hbdd0d06_0.conda
-  sha256: c5c9a691dc00ce9a726426f971fbe21d0501ec8c6228513b945210898f26c761
-  md5: 584f58048dc4af70f6c647b40a7049a6
+  size: 12984065
+  timestamp: 1776069986289
+- conda: https://prefix.dev/conda-forge/osx-arm64/mypy-1.20.1-py314hbdd0d06_0.conda
+  sha256: 620325290662f847461e5ccbdbf7583acbb5fb3d85b09a7a467c52d9d75e9244
+  md5: 119c54cbfd6815017af13e9ce7257639
   depends:
   - __osx >=11.0
   - mypy_extensions >=1.0.0
-  - pathspec >=0.9.0
+  - pathspec >=1.0.0
   - psutil >=4.0
   - python >=3.14,<3.15.0a0
   - python >=3.14,<3.15.0a0 *_cp314
-  - python-librt >=0.6.2
+  - python-librt >=0.8.0
   - python_abi 3.14.* *_cp314
   - typing_extensions >=4.6.0
   license: MIT
   license_family: MIT
   purls:
   - pkg:pypi/mypy?source=hash-mapping
-  size: 11320681
-  timestamp: 1765795843941
-- conda: https://prefix.dev/conda-forge/win-64/mypy-1.19.1-py314h5a2d7ad_0.conda
-  sha256: 59c5f9046ad3ab9a449dee682392799d9589c12e470f0c6fed7f2aaa9b8e8ca2
-  md5: 4ca21331a3962c4fcf658d6d47df4c0b
+  size: 12126390
+  timestamp: 1776070870528
+- conda: https://prefix.dev/conda-forge/win-64/mypy-1.20.1-py314h5a2d7ad_0.conda
+  sha256: 55effd4c7d1d9a2246ce98d2880f2b3478021bf088d389551c911ce77e550bcc
+  md5: 4391f1f6a56943171957c79ffc93da21
   depends:
   - mypy_extensions >=1.0.0
-  - pathspec >=0.9.0
+  - pathspec >=1.0.0
   - psutil >=4.0
   - python >=3.14,<3.15.0a0
-  - python-librt >=0.6.2
+  - python-librt >=0.8.0
   - python_abi 3.14.* *_cp314
   - typing_extensions >=4.6.0
   - ucrt >=10.0.20348.0
@@ -10429,8 +10429,8 @@ packages:
   license_family: MIT
   purls:
   - pkg:pypi/mypy?source=hash-mapping
-  size: 9114684
-  timestamp: 1765795714379
+  size: 9772523
+  timestamp: 1776069743600
 - conda: https://prefix.dev/conda-forge/noarch/mypy_extensions-1.1.0-pyha770c72_0.conda
   sha256: 6ed158e4e5dd8f6a10ad9e525631e35cee8557718f83de7a4e3966b1f772c4b1
   md5: e9c622e0d00fa24a6292279af3ab6d06
diff --git a/pyproject.toml b/pyproject.toml
index 9ced81be..c1429fdb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -92,7 +92,7 @@ array-api-extra.path = "."
 [tool.pixi.feature.lint.dependencies]
 typing-extensions = ">=4.15.0"
 pylint = ">=4.0.5"
-mypy = ">=1.19.1"
+mypy = ">=1.20.0"
 basedpyright = ">=1.39.0"
 numpydoc = ">=1.10.0,<2"
 # import dependencies for mypy:
diff --git a/src/array_api_extra/_lib/_utils/_helpers.py b/src/array_api_extra/_lib/_utils/_helpers.py
index 097307a2..3606d344 100644
--- a/src/array_api_extra/_lib/_utils/_helpers.py
+++ b/src/array_api_extra/_lib/_utils/_helpers.py
@@ -407,7 +407,7 @@ def persistent_id(
             self, obj: object
         ) -> Literal[0, 1, None]:  # numpydoc ignore=GL08
             if isinstance(obj, cls):
-                instances.append(obj)  # type: ignore[arg-type]
+                instances.append(obj)
                 return 0
 
             typ_ = type(obj)