diff --git a/refs/ietf.json b/refs/ietf.json
index 54d57bbea..e28f95f90 100644
--- a/refs/ietf.json
+++ b/refs/ietf.json
@@ -86624,6 +86624,9 @@
         ],
         "rawDate": "2009-09",
         "status": "Draft Standard",
+        "updatedBy": [
+            "RFC9438"
+        ],
         "obsoletes": [
             "RFC2581"
         ],
@@ -127855,6 +127858,9 @@
         ],
         "rawDate": "2018-02",
         "status": "Informational",
+        "obsoletedBy": [
+            "RFC9438"
+        ],
         "hasErrata": "http://www.rfc-editor.org/errata_search.php?rfc=8312",
         "publisher": "IETF",
         "source": "https://www.rfc-editor.org/in-notes/rfc-index.xml"
@@ -145345,6 +145351,45 @@
         "publisher": "IETF",
         "source": "https://www.rfc-editor.org/in-notes/rfc-index.xml"
     },
+    "rfc9438": {
+        "rfcNumber": "RFC9438",
+        "href": "https://www.rfc-editor.org/rfc/rfc9438",
+        "title": "CUBIC for Fast and Long-Distance Networks",
+        "authors": [
+            "L. Xu",
+            "S. Ha",
+            "I. Rhee",
+            "V. Goel",
+            "L. Eggert, Ed."
+        ],
+        "rawDate": "2023-08",
+        "status": "Proposed Standard",
+        "updates": [
+            "RFC5681"
+        ],
+        "obsoletes": [
+            "RFC8312"
+        ],
+        "publisher": "IETF",
+        "source": "https://www.rfc-editor.org/in-notes/rfc-index.xml"
+    },
+    "rfc9439": {
+        "rfcNumber": "RFC9439",
+        "href": "https://www.rfc-editor.org/rfc/rfc9439",
+        "title": "Application-Layer Traffic Optimization (ALTO) Performance Cost Metrics",
+        "authors": [
+            "Q. Wu",
+            "Y. Yang",
+            "Y. Lee",
+            "D. Dhody",
+            "S. Randriamasy",
+            "L. Contreras"
+        ],
+        "rawDate": "2023-08",
+        "status": "Proposed Standard",
+        "publisher": "IETF",
+        "source": "https://www.rfc-editor.org/in-notes/rfc-index.xml"
+    },
     "rfc944": {
         "aliasOf": "rfc0944"
     },
diff --git a/test/ref-list.json b/test/ref-list.json
index 3602747b4..de78cd3ea 100644
--- a/test/ref-list.json
+++ b/test/ref-list.json
@@ -82326,6 +82326,10 @@
     "RFC9435",
     "rfc9437",
     "RFC9437",
+    "rfc9438",
+    "RFC9438",
+    "rfc9439",
+    "RFC9439",
     "rfc944",
     "RFC944",
     "rfc9440",