diff --git a/pkgs/servers/sql/postgresql/default.nix b/pkgs/servers/sql/postgresql/default.nix
index 11fae33a6edd..700f0ad99bd1 100644
--- a/pkgs/servers/sql/postgresql/default.nix
+++ b/pkgs/servers/sql/postgresql/default.nix
@@ -115,17 +115,6 @@ let
       ./patches/specify_pkglibdir_at_runtime.patch
       ./patches/findstring.patch
 
-      # Fix build with libxml2 2.12.0 and -Wincompatible-function-pointer-types
-      (if atLeast "16" then
-        # https://www.postgresql.org/message-id/CACpMh%2BDMZVHM%2BiDSyqdcpK8sr7jd_HxxLJRNvGTzcLBE0W07QA%40mail.gmail.com
-        fetchurl {
-          url = "https://www.postgresql.org/message-id/attachment/152769/v1-0001-Make-PostgreSQL-work-with-newer-version-of-libxml.patch";
-          hash = "sha256-1j5mtG++hFmYwfS98PdN1SmNI4T86q4FXvKLz2VeJyg=";
-        }
-      else
-        ./patches/libxml2.12-15.patch
-      )
-
       (substituteAll {
         src = ./locale-binary-path.patch;
         locale = "${if stdenv.isDarwin then darwin.adv_cmds else lib.getBin stdenv.cc.libc}/bin/locale";
@@ -366,45 +355,45 @@ let
 
   mkPackages = self: {
     postgresql_12 = self.callPackage generic {
-      version = "12.17";
+      version = "12.18";
       psqlSchema = "12";
-      hash = "sha256-k+jhsjmB1fA8bFdj93soGEwc5NtxlPpGbi7bZdnBxfY=";
+      hash = "sha256-T5kZcl2UHOmGjgf+HtHTqGdIWZtIM4ZUdYOSi3TDkYo=";
       this = self.postgresql_12;
       thisAttr = "postgresql_12";
       inherit self;
     };
 
     postgresql_13 = self.callPackage generic {
-      version = "13.13";
+      version = "13.14";
       psqlSchema = "13";
-      hash = "sha256-ivacJZkEeirSRlZ9aOxBMa7xFpVNjD5GnpeJCAs3pHQ=";
+      hash = "sha256-uN8HhVGJiWC9UA3F04oXfpkFN234H+fytmChQH+mpe0=";
       this = self.postgresql_13;
       thisAttr = "postgresql_13";
       inherit self;
     };
 
     postgresql_14 = self.callPackage generic {
-      version = "14.10";
+      version = "14.11";
       psqlSchema = "14";
-      hash = "sha256-yZQxxI6dRwsNCrlG6yFBo80ZEwwvtNxLMoSnd07Mg5k=";
+      hash = "sha256-pnC9fc4i3K1Cl7JhE2s7HUoJpvVBcZViqhTKY78paKg=";
       this = self.postgresql_14;
       thisAttr = "postgresql_14";
       inherit self;
     };
 
     postgresql_15 = self.callPackage generic {
-      version = "15.5";
+      version = "15.6";
       psqlSchema = "15";
-      hash = "sha256-j1OqldeOuOglNupGtoGHeTtCu6O09lqjQvVAsjybEKY=";
+      hash = "sha256-hFUUbtnGnJOlfelUrq0DAsr60DXCskIXXWqh4X68svs=";
       this = self.postgresql_15;
       thisAttr = "postgresql_15";
       inherit self;
     };
 
     postgresql_16 = self.callPackage generic {
-      version = "16.1";
+      version = "16.2";
       psqlSchema = "16";
-      hash = "sha256-zjxNhdGbASH+DT+O8fpgH3GYnob4pm99w61UbdVWT+w=";
+      hash = "sha256-RG6IKU28LJCFq0twYaZG+mBLS+wDUh1epnHC5a2bKVI=";
       this = self.postgresql_16;
       thisAttr = "postgresql_16";
       inherit self;
diff --git a/pkgs/servers/sql/postgresql/patches/libxml2.12-15.patch b/pkgs/servers/sql/postgresql/patches/libxml2.12-15.patch
deleted file mode 100644
index 13438c7d4bb7..000000000000
--- a/pkgs/servers/sql/postgresql/patches/libxml2.12-15.patch
+++ /dev/null
@@ -1,22 +0,0 @@
-diff --git a/src/backend/utils/adt/xml.c b/src/backend/utils/adt/xml.c
-index 6411f56b998..0eb39fcfc26 100644
---- a/src/backend/utils/adt/xml.c
-+++ b/src/backend/utils/adt/xml.c
-@@ -119,7 +119,7 @@ struct PgXmlErrorContext
- 
- static xmlParserInputPtr xmlPgEntityLoader(const char *URL, const char *ID,
- 										   xmlParserCtxtPtr ctxt);
--static void xml_errorHandler(void *data, xmlErrorPtr error);
-+static void xml_errorHandler(void *data, const xmlError *error);
- static void xml_ereport_by_code(int level, int sqlcode,
- 								const char *msg, int errcode);
- static void chopStringInfoNewlines(StringInfo str);
-@@ -1749,7 +1749,7 @@ xml_ereport(PgXmlErrorContext *errcxt, int level, int sqlcode, const char *msg)
-  * Error handler for libxml errors and warnings
-  */
- static void
--xml_errorHandler(void *data, xmlErrorPtr error)
-+xml_errorHandler(void *data, const xmlError *error)
- {
- 	PgXmlErrorContext *xmlerrcxt = (PgXmlErrorContext *) data;
- 	xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) error->ctxt;