diff --git a/CHANGELOG.md b/CHANGELOG.md
index c18c020..1951d03 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -22,6 +22,11 @@ adheres to [Semantic Versioning](https://semver.org/).
   decision narrative, avoiding a redundant full-width context pass.
 
 ### Fixed
+- The minimum supported numpy is now 1.22. The numpy 1.21.6 wheel bundles an
+  OpenBLAS that segfaults on BLAS-backed matrix multiplies on current Apple
+  Silicon Macs regardless of `OPENBLAS_NUM_THREADS`, so installs at the old
+  floor could crash in any code path that multiplies float matrices
+  (for example semantic similarity scoring on larger inputs).
 - Median imputation no longer crashes with `OverflowError` on nullable integer
   columns (`Int8`/`Int16`/`Int32`/`UInt*`) containing missing values under
   numpy 2.5+. Affects `impute="median"`/`"auto"`, the default missing-value
diff --git a/pyproject.toml b/pyproject.toml
index 6ba63dc..e0221ed 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -54,7 +54,7 @@ classifiers = [
 ]
 dependencies = [
     "pandas>=1.5,<3",
-    "numpy>=1.21",
+    "numpy>=1.22",
 ]
 
 [project.optional-dependencies]
diff --git a/uv.lock b/uv.lock
index 3218814..c6bdf22 100644
--- a/uv.lock
+++ b/uv.lock
@@ -3166,7 +3166,7 @@ requires-dist = [
     { name = "mkdocs-material", marker = "extra == 'docs'", specifier = ">=9.5" },
     { name = "mkdocstrings", extras = ["python"], marker = "extra == 'docs'", specifier = ">=0.25" },
     { name = "mypy", marker = "extra == 'dev'", specifier = ">=1.8" },
-    { name = "numpy", specifier = ">=1.21" },
+    { name = "numpy", specifier = ">=1.22" },
     { name = "onnxruntime", marker = "extra == 'semantic'", specifier = ">=1.15" },
     { name = "openpyxl", marker = "extra == 'all'", specifier = ">=3.0.7" },
     { name = "openpyxl", marker = "extra == 'dev'", specifier = ">=3.0.7" },