diff --git a/pgrx-pg-config/src/lib.rs b/pgrx-pg-config/src/lib.rs
index fba1a84512..0c1d28a0f1 100644
--- a/pgrx-pg-config/src/lib.rs
+++ b/pgrx-pg-config/src/lib.rs
@@ -667,12 +667,10 @@ pub fn SUPPORTED_VERSIONS() -> Vec<PgVersion> {
         PgVersion::new(15, PgMinorVersion::Latest, None),
         PgVersion::new(
             16,
-            PgMinorVersion::Beta(3),
+            PgMinorVersion::Rc(1),
             Some(
-                Url::parse(
-                    "https://ftp.postgresql.org/pub/source/v16beta3/postgresql-16beta3.tar.bz2",
-                )
-                .expect("invalid url for v16beta3"),
+                Url::parse("https://ftp.postgresql.org/pub/source/v16rc1/postgresql-16rc1.tar.bz2")
+                    .expect("invalid url for v16rc1"),
             ),
         ),
     ]