diff --git a/pkgs/servers/sql/postgresql/15.nix b/pkgs/servers/sql/postgresql/15.nix
index 5ede047dc2b0..85a128fbfb13 100644
--- a/pkgs/servers/sql/postgresql/15.nix
+++ b/pkgs/servers/sql/postgresql/15.nix
@@ -1,6 +1,6 @@
 import ./generic.nix {
-  version = "15.8";
-  hash = "sha256-RANRX5pp7rPv68mPMLjGlhIr/fiV6Ss7I/W452nty2o=";
+  version = "15.9";
+  hash = "sha256-dPLUVlA18M9ynssFmUn6rxECy9k3WbNZgi+Y+CGYx4M=";
   muslPatches = {
     dont-use-locale-a = {
       url = "https://git.alpinelinux.org/aports/plain/main/postgresql15/dont-use-locale-a-on-musl.patch?id=f424e934e6d076c4ae065ce45e734aa283eecb9c";
diff --git a/pkgs/servers/sql/postgresql/generic.nix b/pkgs/servers/sql/postgresql/generic.nix
index 5f1c41f26281..6f53fa9031e0 100644
--- a/pkgs/servers/sql/postgresql/generic.nix
+++ b/pkgs/servers/sql/postgresql/generic.nix
@@ -171,7 +171,7 @@ let
         url = "https://github.com/postgres/postgres/commit/0a883a067bd78f0ff0607afb18c4f783ac764504.patch";
         hash = "sha256-F3zCaar6w6bwQDno7Tkg7ZbPJ+rhgi8/2NSvFakzQek=";
       }))
-    ] ++ lib.optionals (olderThan "17" && atLeast "15") [
+    ] ++ lib.optionals (olderThan "17" && atLeast "16") [
       # TODO: Remove this with the next set of minor releases
       (fetchpatch ({
           url = "https://github.com/postgres/postgres/commit/b27622c90869aab63cfe22159a459c57768b0fa4.patch";