diff --git a/model/SimpleLicensing/Classes/LicenseExpression.md b/model/SimpleLicensing/Classes/LicenseExpression.md
index 0f58a9083..b3e0e1c52 100644
--- a/model/SimpleLicensing/Classes/LicenseExpression.md
+++ b/model/SimpleLicensing/Classes/LicenseExpression.md
@@ -23,6 +23,9 @@ SPDX License Expressions provide a way for one to construct expressions that mor
   - type: xsd:string
   - minCount: 1
   - maxCount: 1
+- licenseListVersion
+  - type: /Core/SemVer
+  - maxCount: 1
 - customIdToUri
   - type: /Core/DictionaryEntry
   - minCount: 0
diff --git a/model/SimpleLicensing/Properties/licenseListVersion.md b/model/SimpleLicensing/Properties/licenseListVersion.md
new file mode 100644
index 000000000..4aef55e6f
--- /dev/null
+++ b/model/SimpleLicensing/Properties/licenseListVersion.md
@@ -0,0 +1,20 @@
+SPDX-License-Identifier: Community-Spec-1.0
+
+# licenseListVersion
+
+## Summary
+
+The version of the SPDX License List used in the license expression.
+
+## Description
+
+Recognizing that licenses are added to the SPDX License List with each subsequent version, the intent is to provide consumers with the version of the SPDX License List used. 
+This anticipates that in the future, license expression might have used a version of the SPDX License List that is older than the then current one.
+The specified version of the SPDX License List must include all listed licenses and exceptions referenced in the expression.
+
+## Metadata
+
+- name: licenseListVersion
+- Nature: DataProperty
+- Range: /Core/SemVer
+