diff --git a/pgxn/neon/neon--1.0.sql b/pgxn/neon/neon--1.0.sql
index 78982b46cd..ee61888573 100644
--- a/pgxn/neon/neon--1.0.sql
+++ b/pgxn/neon/neon--1.0.sql
@@ -32,6 +32,8 @@ RETURNS integer
 AS 'MODULE_PATHNAME', 'approximate_working_set_size'
 LANGUAGE C PARALLEL SAFE;
 
+GRANT EXECUTE ON FUNCTION approximate_working_set_size() TO pg_monitor;
+
 -- Create a view for convenient access.
 CREATE VIEW local_cache AS
 	SELECT P.* FROM local_cache_pages() AS P
diff --git a/vendor/postgres-v14 b/vendor/postgres-v14
index 9fd9794436..4cdba8ec5a 160000
--- a/vendor/postgres-v14
+++ b/vendor/postgres-v14
@@ -1 +1 @@
-Subproject commit 9fd9794436d02fbfe68f8fca5beab218907cec41
+Subproject commit 4cdba8ec5a3868cec4826bbb3f16c1d3d2ac2283
diff --git a/vendor/postgres-v15 b/vendor/postgres-v15
index 257aaefb25..0ec04712d5 160000
--- a/vendor/postgres-v15
+++ b/vendor/postgres-v15
@@ -1 +1 @@
-Subproject commit 257aaefb251c5c85c44652c01bf68c43db62748a
+Subproject commit 0ec04712d55539550278595e853c172f7aa5fe3e