diff --git a/pkgs/servers/sql/postgresql/12.nix b/pkgs/servers/sql/postgresql/12.nix
index 74098e91f2eb..42e8ef960d42 100644
--- a/pkgs/servers/sql/postgresql/12.nix
+++ b/pkgs/servers/sql/postgresql/12.nix
@@ -1,4 +1,4 @@
 import ./generic.nix {
-  version = "12.19";
-  hash = "sha256-YX495Swi6CL09X0B1bIkBQPhmKnsyvWYqFEQm9GOb7s=";
+  version = "12.20";
+  hash = "sha256-LVQ68wCf7H/VrzX3pwyVCF0+72tQjlF6qUk+mbFenqk=";
 }
diff --git a/pkgs/servers/sql/postgresql/13.nix b/pkgs/servers/sql/postgresql/13.nix
index 6347ad157216..ad55c9a55805 100644
--- a/pkgs/servers/sql/postgresql/13.nix
+++ b/pkgs/servers/sql/postgresql/13.nix
@@ -1,6 +1,6 @@
 import ./generic.nix {
-  version = "13.15";
-  hash = "sha256-Qu3UFURtM7jCQr520a0FdTGyJksuhpOTObcHXG5OySU=";
+  version = "13.16";
+  hash = "sha256-ycu7YSnwIyggSCgGa7N4XACoXIyo/TKcKopTwfXNiGU=";
   muslPatches = {
     disable-test-collate-icu-utf8 = {
       url = "https://git.alpinelinux.org/aports/plain/main/postgresql13/disable-test-collate.icu.utf8.patch?id=69faa146ec9fff3b981511068f17f9e629d4688b";
diff --git a/pkgs/servers/sql/postgresql/14.nix b/pkgs/servers/sql/postgresql/14.nix
index 1b4827bcb732..91341a3bd1f7 100644
--- a/pkgs/servers/sql/postgresql/14.nix
+++ b/pkgs/servers/sql/postgresql/14.nix
@@ -1,6 +1,6 @@
 import ./generic.nix {
-  version = "14.12";
-  hash = "sha256-YRjQj53cwb2Dzyt8x007WDvc7C835iRaisADuPqoCSM=";
+  version = "14.13";
+  hash = "sha256-Wao8S0lasmqexp860KAijFHw/m+s82NN+tTRGX1hOlY=";
   muslPatches = {
     disable-test-collate-icu-utf8 = {
       url = "https://git.alpinelinux.org/aports/plain/main/postgresql14/disable-test-collate.icu.utf8.patch?id=56999e6d0265ceff5c5239f85fdd33e146f06cb7";
diff --git a/pkgs/servers/sql/postgresql/15.nix b/pkgs/servers/sql/postgresql/15.nix
index a9bde7fd0e67..63f4928401ac 100644
--- a/pkgs/servers/sql/postgresql/15.nix
+++ b/pkgs/servers/sql/postgresql/15.nix
@@ -1,4 +1,4 @@
 import ./generic.nix {
-  version = "15.7";
-  hash = "sha256-pG/klIWrY4Xjnau7tlT10wSSBvds1pXiJCaHKVIJmPc=";
+  version = "15.8";
+  hash = "sha256-RANRX5pp7rPv68mPMLjGlhIr/fiV6Ss7I/W452nty2o=";
 }
diff --git a/pkgs/servers/sql/postgresql/16.nix b/pkgs/servers/sql/postgresql/16.nix
index c964fc5800c8..569ef4b9e08b 100644
--- a/pkgs/servers/sql/postgresql/16.nix
+++ b/pkgs/servers/sql/postgresql/16.nix
@@ -1,4 +1,4 @@
 import ./generic.nix {
-  version = "16.3";
-  hash = "sha256-Mxlj1dPcTK9CFqBJ+kC2bWvLjHMGFYWUEblRh2TmBYU=";
+  version = "16.4";
+  hash = "sha256-lxdm1kWqc+k7nvTjvkQgG09FtUdwlbBJElQD+fM4bW8=";
 }
diff --git a/pkgs/servers/sql/postgresql/generic.nix b/pkgs/servers/sql/postgresql/generic.nix
index 1a252f5888e9..08b32befb672 100644
--- a/pkgs/servers/sql/postgresql/generic.nix
+++ b/pkgs/servers/sql/postgresql/generic.nix
@@ -19,7 +19,7 @@ let
       , version, hash, muslPatches ? {}
 
       # for tests
-      , testers, nixosTests
+      , testers
 
       # JIT
       , jitSupport
@@ -119,23 +119,6 @@ let
         src = ./patches/locale-binary-path.patch;
         locale = "${if stdenv.isDarwin then darwin.adv_cmds else lib.getBin stdenv.cc.libc}/bin/locale";
       })
-
-      (
-        if atLeast "16" then
-          fetchpatch {
-            name = "libxml2-2.13-compat.patch";
-            # This one is for 16 branch upstream.
-            url = "https://github.com/postgres/postgres/commit/f85c91a1867b45742bb28e4578ca2b4a0976383f.diff";
-            hash = "sha256-4YcXfo98uVuCu+ybVw3bM4x8Y0I1xfjdjBZOlhyF21w=";
-          }
-        else
-          fetchpatch {
-            name = "libxml2-2.13-compat.patch";
-            # This one is for 15 branch upstream, but it also applies well to all our older branches.
-            url = "https://github.com/postgres/postgres/commit/f68d6aabb7e2c803818185b49a3d356bdb2b2974.diff";
-            hash = "sha256-Nelb0mbjx0Xq9UJuVv7cs3ifCtUPP7UZraPMPGb2wyQ=";
-          }
-      )
     ] ++ lib.optionals stdenv'.hostPlatform.isMusl (
       # Using fetchurl instead of fetchpatch on purpose: https://github.com/NixOS/nixpkgs/issues/240141
       map fetchurl (lib.attrValues muslPatches)