diff --git a/specification.json b/specification.json
index 0f6dd400..0f45dabc 100644
--- a/specification.json
+++ b/specification.json
@@ -265,8 +265,8 @@
             "RFC 2119 keyword": null,
             "children": [
                 {
-                    "id": "Conditional Requirement 1.4.14.1",
-                    "machine_id": "conditional_requirement_1_4_14_1",
+                    "id": "Conditional Requirement 1.4.15.1",
+                    "machine_id": "conditional_requirement_1_4_15_1",
                     "content": "Condition: `Flag metadata` MUST be immutable.",
                     "RFC 2119 keyword": "MUST",
                     "children": []
diff --git a/specification/assets/gherkin/evaluation_v2.feature b/specification/assets/gherkin/evaluation_v2.feature
index 4f2c706f..8754b1eb 100644
--- a/specification/assets/gherkin/evaluation_v2.feature
+++ b/specification/assets/gherkin/evaluation_v2.feature
@@ -488,9 +488,9 @@ Feature: Flag Evaluations - Complete OpenFeature Specification Coverage
         And the hook order should be maintained
 
 
-  # Testing immutability requirements (Spec 1.4.15/1.4.14.1)
+  # Testing immutability requirements (Spec 1.4.15/1.4.15.1)
   # Testing: flag metadata must be immutable
-    @immutability @spec-1.4.14.1
+    @immutability @spec-1.4.15.1
     Scenario: Evaluation context immutability
         Given a Boolean-flag with key "boolean-flag" and a fallback value "false"
         And an evaluation context with modifiable data
diff --git a/specification/sections/01-flag-evaluation.md b/specification/sections/01-flag-evaluation.md
index 08be8091..807677bf 100644
--- a/specification/sections/01-flag-evaluation.md
+++ b/specification/sections/01-flag-evaluation.md
@@ -382,7 +382,7 @@ This `flag metadata` field is intended as a mechanism for providers to surface a
 
 > The implementation language supports a mechanism for marking data as immutable.
 
-##### Conditional Requirement 1.4.14.1
+##### Conditional Requirement 1.4.15.1
 
 > Condition: `Flag metadata` **MUST** be immutable.