diff --git a/vendor/postgres-v15 b/vendor/postgres-v15
index 46b4b235f3..76063bff63 160000
--- a/vendor/postgres-v15
+++ b/vendor/postgres-v15
@@ -1 +1 @@
-Subproject commit 46b4b235f38413ab5974bb22c022f9b829257674
+Subproject commit 76063bff638ccce7afa99fc9037ac51338b9823d
diff --git a/vendor/revisions.json b/vendor/revisions.json
index c2b5fb8915..2921372c24 100644
--- a/vendor/revisions.json
+++ b/vendor/revisions.json
@@ -4,8 +4,8 @@
     "47a9122a5a150a3217fafd3f3d4fe8e020ea718a"
   ],
   "v15": [
-    "15.7",
-    "46b4b235f38413ab5974bb22c022f9b829257674"
+    "15.8",
+    "76063bff638ccce7afa99fc9037ac51338b9823d"
   ],
   "v14": [
     "14.13",