diff --git a/packages/compare-images/python/itkwasm-compare-images-emscripten/pyproject.toml b/packages/compare-images/python/itkwasm-compare-images-emscripten/pyproject.toml
index 3f55649e2..c8244352b 100644
--- a/packages/compare-images/python/itkwasm-compare-images-emscripten/pyproject.toml
+++ b/packages/compare-images/python/itkwasm-compare-images-emscripten/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "hatchling.build"
 [project]
 name = "itkwasm-compare-images-emscripten"
 readme = "README.md"
-license = "Apache-2.0"
+license-expression = "Apache-2.0"
 dynamic = ["version", "description"]
 classifiers = [
   "License :: OSI Approved :: Apache Software License",
diff --git a/packages/compare-images/python/itkwasm-compare-images-wasi/pyproject.toml b/packages/compare-images/python/itkwasm-compare-images-wasi/pyproject.toml
index aa99ec1d0..bfa81f783 100644
--- a/packages/compare-images/python/itkwasm-compare-images-wasi/pyproject.toml
+++ b/packages/compare-images/python/itkwasm-compare-images-wasi/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "hatchling.build"
 [project]
 name = "itkwasm-compare-images-wasi"
 readme = "README.md"
-license = "Apache-2.0"
+license-expression = "Apache-2.0"
 dynamic = ["version", "description"]
 classifiers = [
   "License :: OSI Approved :: Apache Software License",
diff --git a/packages/compare-images/python/itkwasm-compare-images/pyproject.toml b/packages/compare-images/python/itkwasm-compare-images/pyproject.toml
index 0693939f9..56d627364 100644
--- a/packages/compare-images/python/itkwasm-compare-images/pyproject.toml
+++ b/packages/compare-images/python/itkwasm-compare-images/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "hatchling.build"
 [project]
 name = "itkwasm-compare-images"
 readme = "README.md"
-license = "Apache-2.0"
+license-expression = "Apache-2.0"
 dynamic = ["version"]
 description = "Compare images with a tolerance for regression testing."
 classifiers = [
diff --git a/packages/compress-stringify/python/itkwasm-compress-stringify-emscripten/pyproject.toml b/packages/compress-stringify/python/itkwasm-compress-stringify-emscripten/pyproject.toml
index b3718082a..1bd21663d 100644
--- a/packages/compress-stringify/python/itkwasm-compress-stringify-emscripten/pyproject.toml
+++ b/packages/compress-stringify/python/itkwasm-compress-stringify-emscripten/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "hatchling.build"
 [project]
 name = "itkwasm-compress-stringify-emscripten"
 readme = "README.md"
-license = "Apache-2.0"
+license-expression = "Apache-2.0"
 dynamic = ["version", "description"]
 classifiers = [
   "License :: OSI Approved :: Apache Software License",
diff --git a/packages/compress-stringify/python/itkwasm-compress-stringify-wasi/pyproject.toml b/packages/compress-stringify/python/itkwasm-compress-stringify-wasi/pyproject.toml
index d35a2c732..40bda1fa7 100644
--- a/packages/compress-stringify/python/itkwasm-compress-stringify-wasi/pyproject.toml
+++ b/packages/compress-stringify/python/itkwasm-compress-stringify-wasi/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "hatchling.build"
 [project]
 name = "itkwasm-compress-stringify-wasi"
 readme = "README.md"
-license = "Apache-2.0"
+license-expression = "Apache-2.0"
 dynamic = ["version", "description"]
 classifiers = [
   "License :: OSI Approved :: Apache Software License",
diff --git a/packages/compress-stringify/python/itkwasm-compress-stringify/pyproject.toml b/packages/compress-stringify/python/itkwasm-compress-stringify/pyproject.toml
index 1bd4d077f..ea4c3998c 100644
--- a/packages/compress-stringify/python/itkwasm-compress-stringify/pyproject.toml
+++ b/packages/compress-stringify/python/itkwasm-compress-stringify/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "hatchling.build"
 [project]
 name = "itkwasm-compress-stringify"
 readme = "README.md"
-license = "Apache-2.0"
+license-expression = "Apache-2.0"
 dynamic = ["version"]
 description = "Zstandard compression and decompression and base64 encoding and decoding in WebAssembly."
 classifiers = [
diff --git a/packages/core/python/itkwasm/test/test-accelerator/pyproject.toml b/packages/core/python/itkwasm/test/test-accelerator/pyproject.toml
index a261748a3..d0c3436b3 100644
--- a/packages/core/python/itkwasm/test/test-accelerator/pyproject.toml
+++ b/packages/core/python/itkwasm/test/test-accelerator/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "test-accelerator"
-license = "Apache-2.0"
+license-expression = "Apache-2.0"
 version = "0.0.1"
 
 requires-python = ">=3.8"
diff --git a/packages/core/typescript/itk-wasm/src/bindgen/python/resources/template.pyproject.toml b/packages/core/typescript/itk-wasm/src/bindgen/python/resources/template.pyproject.toml
index 674c57547..5859d9939 100644
--- a/packages/core/typescript/itk-wasm/src/bindgen/python/resources/template.pyproject.toml
+++ b/packages/core/typescript/itk-wasm/src/bindgen/python/resources/template.pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "hatchling.build"
 [project]
 name = "@bindgenPackageName@"
 readme = "README.md"
-license = "Apache-2.0"
+license-expression = "Apache-2.0"
 dynamic = ["version"]
 description = "@bindgenPackageDescription@"
 classifiers = [
diff --git a/packages/core/typescript/itk-wasm/test/pipelines/bindgen-interface-types-pipeline/python/itkwasm-bindgen-interface-types-test-wasi/pyproject.toml b/packages/core/typescript/itk-wasm/test/pipelines/bindgen-interface-types-pipeline/python/itkwasm-bindgen-interface-types-test-wasi/pyproject.toml
index 1e404c99e..6d3101842 100644
--- a/packages/core/typescript/itk-wasm/test/pipelines/bindgen-interface-types-pipeline/python/itkwasm-bindgen-interface-types-test-wasi/pyproject.toml
+++ b/packages/core/typescript/itk-wasm/test/pipelines/bindgen-interface-types-pipeline/python/itkwasm-bindgen-interface-types-test-wasi/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "hatchling.build"
 [project]
 name = "itkwasm-bindgen-interface-types-test-wasi"
 readme = "README.md"
-license = "Apache-2.0"
+license-expression = "Apache-2.0"
 dynamic = ["version"]
 description = "Exercise interface types for bindgen"
 classifiers = [
diff --git a/packages/core/typescript/itk-wasm/test/pipelines/bindgen-interface-types-pipeline/python/itkwasm-bindgen-interface-types-test/pyproject.toml b/packages/core/typescript/itk-wasm/test/pipelines/bindgen-interface-types-pipeline/python/itkwasm-bindgen-interface-types-test/pyproject.toml
index 1c09931f4..4dd29bb1d 100644
--- a/packages/core/typescript/itk-wasm/test/pipelines/bindgen-interface-types-pipeline/python/itkwasm-bindgen-interface-types-test/pyproject.toml
+++ b/packages/core/typescript/itk-wasm/test/pipelines/bindgen-interface-types-pipeline/python/itkwasm-bindgen-interface-types-test/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "hatchling.build"
 [project]
 name = "itkwasm-bindgen-interface-types-test"
 readme = "README.md"
-license = "Apache-2.0"
+license-expression = "Apache-2.0"
 dynamic = ["version"]
 description = "Exercise interface types for bindgen"
 classifiers = [
diff --git a/packages/dicom/python/itkwasm-dicom-emscripten/pyproject.toml b/packages/dicom/python/itkwasm-dicom-emscripten/pyproject.toml
index b1250e536..2fd905557 100644
--- a/packages/dicom/python/itkwasm-dicom-emscripten/pyproject.toml
+++ b/packages/dicom/python/itkwasm-dicom-emscripten/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "hatchling.build"
 [project]
 name = "itkwasm-dicom-emscripten"
 readme = "README.md"
-license = "Apache-2.0"
+license-expression = "Apache-2.0"
 dynamic = ["version", "description"]
 classifiers = [
   "License :: OSI Approved :: Apache Software License",
diff --git a/packages/dicom/python/itkwasm-dicom-wasi/pyproject.toml b/packages/dicom/python/itkwasm-dicom-wasi/pyproject.toml
index 05d2e2da0..dbd831836 100644
--- a/packages/dicom/python/itkwasm-dicom-wasi/pyproject.toml
+++ b/packages/dicom/python/itkwasm-dicom-wasi/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "hatchling.build"
 [project]
 name = "itkwasm-dicom-wasi"
 readme = "README.md"
-license = "Apache-2.0"
+license-expression = "Apache-2.0"
 dynamic = ["version", "description"]
 classifiers = [
   "License :: OSI Approved :: Apache Software License",
diff --git a/packages/dicom/python/itkwasm-dicom/pyproject.toml b/packages/dicom/python/itkwasm-dicom/pyproject.toml
index c00b1b9fc..23cabb22b 100644
--- a/packages/dicom/python/itkwasm-dicom/pyproject.toml
+++ b/packages/dicom/python/itkwasm-dicom/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "hatchling.build"
 [project]
 name = "itkwasm-dicom"
 readme = "README.md"
-license = "Apache-2.0"
+license-expression = "Apache-2.0"
 dynamic = ["version"]
 description = "Read files and images related to DICOM file format."
 classifiers = [
diff --git a/packages/downsample/python/itkwasm-downsample-cucim/pyproject.toml b/packages/downsample/python/itkwasm-downsample-cucim/pyproject.toml
index 6d0b4b613..941669831 100644
--- a/packages/downsample/python/itkwasm-downsample-cucim/pyproject.toml
+++ b/packages/downsample/python/itkwasm-downsample-cucim/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "hatchling.build"
 [project]
 name = "itkwasm-downsample-cucim"
 readme = "README.md"
-license = "Apache-2.0"
+license-expression = "Apache-2.0"
 dynamic = ["version"]
 description = "Pipelines for downsampling images. cuCIM implementation."
 classifiers = [
diff --git a/packages/downsample/python/itkwasm-downsample-emscripten/pyproject.toml b/packages/downsample/python/itkwasm-downsample-emscripten/pyproject.toml
index 1fe3cc34d..08a4b57c3 100644
--- a/packages/downsample/python/itkwasm-downsample-emscripten/pyproject.toml
+++ b/packages/downsample/python/itkwasm-downsample-emscripten/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "hatchling.build"
 [project]
 name = "itkwasm-downsample-emscripten"
 readme = "README.md"
-license = "Apache-2.0"
+license-expression = "Apache-2.0"
 dynamic = ["version"]
 description = "Pipelines for downsampling images."
 classifiers = [
diff --git a/packages/downsample/python/itkwasm-downsample-wasi/pyproject.toml b/packages/downsample/python/itkwasm-downsample-wasi/pyproject.toml
index dc1c26385..76d5fa615 100644
--- a/packages/downsample/python/itkwasm-downsample-wasi/pyproject.toml
+++ b/packages/downsample/python/itkwasm-downsample-wasi/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "hatchling.build"
 [project]
 name = "itkwasm-downsample-wasi"
 readme = "README.md"
-license = "Apache-2.0"
+license-expression = "Apache-2.0"
 dynamic = ["version"]
 description = "Pipelines for downsampling images."
 classifiers = [
diff --git a/packages/downsample/python/itkwasm-downsample/pyproject.toml b/packages/downsample/python/itkwasm-downsample/pyproject.toml
index b9c0ee3cb..33c0047a3 100644
--- a/packages/downsample/python/itkwasm-downsample/pyproject.toml
+++ b/packages/downsample/python/itkwasm-downsample/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "hatchling.build"
 [project]
 name = "itkwasm-downsample"
 readme = "README.md"
-license = "Apache-2.0"
+license-expression = "Apache-2.0"
 dynamic = ["version"]
 description = "Pipelines for downsampling images."
 classifiers = [
diff --git a/packages/image-io/python/itkwasm-image-io-emscripten/pyproject.toml b/packages/image-io/python/itkwasm-image-io-emscripten/pyproject.toml
index cc013878b..e3a9a89db 100644
--- a/packages/image-io/python/itkwasm-image-io-emscripten/pyproject.toml
+++ b/packages/image-io/python/itkwasm-image-io-emscripten/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "hatchling.build"
 [project]
 name = "itkwasm-image-io-emscripten"
 readme = "README.md"
-license = "Apache-2.0"
+license-expression = "Apache-2.0"
 dynamic = ["version"]
 description = "Input and output for scientific and medical image file formats."
 classifiers = [
diff --git a/packages/image-io/python/itkwasm-image-io-wasi/pyproject.toml b/packages/image-io/python/itkwasm-image-io-wasi/pyproject.toml
index 307656293..3da18e0ad 100644
--- a/packages/image-io/python/itkwasm-image-io-wasi/pyproject.toml
+++ b/packages/image-io/python/itkwasm-image-io-wasi/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "hatchling.build"
 [project]
 name = "itkwasm-image-io-wasi"
 readme = "README.md"
-license = "Apache-2.0"
+license-expression = "Apache-2.0"
 dynamic = ["version"]
 description = "Input and output for scientific and medical image file formats."
 classifiers = [
diff --git a/packages/image-io/python/itkwasm-image-io/pyproject.toml b/packages/image-io/python/itkwasm-image-io/pyproject.toml
index b868520a0..ae248846a 100644
--- a/packages/image-io/python/itkwasm-image-io/pyproject.toml
+++ b/packages/image-io/python/itkwasm-image-io/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "hatchling.build"
 [project]
 name = "itkwasm-image-io"
 readme = "README.md"
-license = "Apache-2.0"
+license-expression = "Apache-2.0"
 dynamic = ["version"]
 description = "Input and output for scientific and medical image file formats."
 classifiers = [
diff --git a/packages/mesh-io/python/itkwasm-mesh-io-emscripten/pyproject.toml b/packages/mesh-io/python/itkwasm-mesh-io-emscripten/pyproject.toml
index eeb94657d..fca3e2b44 100644
--- a/packages/mesh-io/python/itkwasm-mesh-io-emscripten/pyproject.toml
+++ b/packages/mesh-io/python/itkwasm-mesh-io-emscripten/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "hatchling.build"
 [project]
 name = "itkwasm-mesh-io-emscripten"
 readme = "README.md"
-license = "Apache-2.0"
+license-expression = "Apache-2.0"
 dynamic = ["version"]
 description = "Input and output for scientific and medical image file formats."
 classifiers = [
diff --git a/packages/mesh-io/python/itkwasm-mesh-io-wasi/pyproject.toml b/packages/mesh-io/python/itkwasm-mesh-io-wasi/pyproject.toml
index 66b652be4..8b3dc7607 100644
--- a/packages/mesh-io/python/itkwasm-mesh-io-wasi/pyproject.toml
+++ b/packages/mesh-io/python/itkwasm-mesh-io-wasi/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "hatchling.build"
 [project]
 name = "itkwasm-mesh-io-wasi"
 readme = "README.md"
-license = "Apache-2.0"
+license-expression = "Apache-2.0"
 dynamic = ["version"]
 description = "Input and output for scientific and medical image file formats."
 classifiers = [
diff --git a/packages/mesh-io/python/itkwasm-mesh-io/pyproject.toml b/packages/mesh-io/python/itkwasm-mesh-io/pyproject.toml
index d83278947..a915d0ff5 100644
--- a/packages/mesh-io/python/itkwasm-mesh-io/pyproject.toml
+++ b/packages/mesh-io/python/itkwasm-mesh-io/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "hatchling.build"
 [project]
 name = "itkwasm-mesh-io"
 readme = "README.md"
-license = "Apache-2.0"
+license-expression = "Apache-2.0"
 dynamic = ["version"]
 description = "Input and output for scientific and medical image file formats."
 classifiers = [