diff --git a/Makefile b/Makefile
index e5ca2180..2849dd94 100644
--- a/Makefile
+++ b/Makefile
@@ -107,7 +107,7 @@ upgrade-quiet:
 # Generate a Software Bill of Materials (SBOM).
 .PHONY: sbom
 sbom: requirements
-	cyclonedx-py --force --requirements --format json --output dist/$(PACKAGE_NAME)-$(PACKAGE_VERSION)-sbom.json
+	cyclonedx-py requirements --output-format json --outfile dist/$(PACKAGE_NAME)-$(PACKAGE_VERSION)-sbom.json
 
 # Generate a requirements.txt file containing version and integrity hashes for all
 # packages currently installed in the virtual environment. There's no easy way to
diff --git a/pyproject.toml b/pyproject.toml
index 1fa9848d..4c8cc19d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -48,7 +48,7 @@ dev = [
     "pip-audit >=2.4.4,<3.0.0",
     "pylint >=3.0.0,<3.1.0",
     "perflint >=0.8.0,<1.0.0",
-    "cyclonedx-bom >=3.11.0,<4.0.0",
+    "cyclonedx-bom >=4.0.0,<5.0.0",
 ]
 docs = [
     "sphinx >=5.1.1,<8.0.0",