diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index a4f2c41456..e98d8af768 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -18,7 +18,7 @@ repos:
         # Pandas 2.x types (e.g. `pd.Series[Any]`). See `_types.py` or https://github.com/single-cell-data/TileDB-SOMA/issues/2839
         # for more info.
         - "pandas-stubs>=2"
-        - "somacore==1.0.19"
+        - "somacore==1.0.20"
         - types-setuptools
       args: ["--config-file=apis/python/pyproject.toml", "apis/python/src", "apis/python/devtools"]
       pass_filenames: false
diff --git a/apis/python/setup.py b/apis/python/setup.py
index 11c373a70c..ce28d534ed 100644
--- a/apis/python/setup.py
+++ b/apis/python/setup.py
@@ -336,7 +336,7 @@ def run(self):
         "scanpy>=1.9.2",
         "scipy",
         # Note: the somacore version is in .pre-commit-config.yaml too
-        "somacore==1.0.19",
+        "somacore==1.0.20",
         "tiledb~=0.32.0",
         "typing-extensions",  # Note "-" even though `import typing_extensions`
     ],