diff --git a/src/validate_pyproject/project_metadata.schema.json b/src/validate_pyproject/project_metadata.schema.json
index 00c3d03..fdb51f6 100644
--- a/src/validate_pyproject/project_metadata.schema.json
+++ b/src/validate_pyproject/project_metadata.schema.json
@@ -144,6 +144,13 @@
         "type": "string"
       }
     },
+    "sbom-files": {
+      "description": "Paths or globs to paths of Software Bill-of-Materials files",
+      "type": "array",
+      "items": {
+        "type": "string"
+      }
+    },
     "authors": {
       "type": "array",
       "items": {"$ref": "#/definitions/author"},
@@ -247,6 +254,7 @@
           "requires-python",
           "license",
           "license-files",
+          "sbom-files",
           "authors",
           "maintainers",
           "keywords",
diff --git a/tests/examples/simple/pep770.toml b/tests/examples/simple/pep770.toml
new file mode 100644
index 0000000..5049970
--- /dev/null
+++ b/tests/examples/simple/pep770.toml
@@ -0,0 +1,4 @@
+[project]
+name = "example"
+version = "1.2.3"
+sbom-files = ["sboms/bom.cdx.json", "sboms/*"]
diff --git a/tests/invalid-examples/pep621/pep770/pep770-string.errors.txt b/tests/invalid-examples/pep621/pep770/pep770-string.errors.txt
new file mode 100644
index 0000000..e421b7d
--- /dev/null
+++ b/tests/invalid-examples/pep621/pep770/pep770-string.errors.txt
@@ -0,0 +1 @@
+`project.sbom-files` must be array
diff --git a/tests/invalid-examples/pep621/pep770/pep770-string.toml b/tests/invalid-examples/pep621/pep770/pep770-string.toml
new file mode 100644
index 0000000..4a06197
--- /dev/null
+++ b/tests/invalid-examples/pep621/pep770/pep770-string.toml
@@ -0,0 +1,4 @@
+[project]
+name = "example"
+version = "1.2.3"
+sbom-files = "sboms/bom.cdx.json"