diff --git a/pkgs/by-name/od/odoo/package.nix b/pkgs/by-name/od/odoo/package.nix
index ceef961f1fd8..f2e18785810f 100644
--- a/pkgs/by-name/od/odoo/package.nix
+++ b/pkgs/by-name/od/odoo/package.nix
@@ -8,8 +8,8 @@
 }:
 
 let
-  odoo_version = "18.0";
-  odoo_release = "20250506";
+  odoo_version = "19.0";
+  odoo_release = "20260104";
   python = python312.override {
     self = python;
   };
@@ -24,7 +24,7 @@ python.pkgs.buildPythonApplication rec {
     # find latest version on https://nightly.odoo.com/${odoo_version}/nightly/src
     url = "https://nightly.odoo.com/${odoo_version}/nightly/src/odoo_${version}.zip";
     name = "odoo-${version}";
-    hash = "sha256-rNG0He+51DnRT5g1SovGZ9uiE1HWXtcmAybcadBMjY4="; # odoo
+    hash = "sha256-JsbJ39zPZm4eyRTXkvdCMHwYaA08yUxZXcLglRn3kWs="; # odoo
   };
 
   makeWrapperArgs = [
@@ -38,13 +38,13 @@ python.pkgs.buildPythonApplication rec {
   ];
 
   propagatedBuildInputs = with python.pkgs; [
+    asn1crypto
     babel
+    cbor2
     chardet
     cryptography
-    decorator
-    docutils
     distutils
-    ebaysdk
+    docutils
     freezegun
     geoip2
     gevent
@@ -62,7 +62,6 @@ python.pkgs.buildPythonApplication rec {
     polib
     psutil
     psycopg2
-    pydot
     pyopenssl
     pypdf2
     pyserial
@@ -82,9 +81,6 @@ python.pkgs.buildPythonApplication rec {
     xlsxwriter
     xlwt
     zeep
-
-    setuptools
-    mock
   ];
 
   # takes 5+ minutes and there are not files to strip
diff --git a/pkgs/by-name/od/odoo18/package.nix b/pkgs/by-name/od/odoo18/package.nix
new file mode 100644
index 000000000000..ceef961f1fd8
--- /dev/null
+++ b/pkgs/by-name/od/odoo18/package.nix
@@ -0,0 +1,109 @@
+{
+  lib,
+  fetchzip,
+  python312,
+  rtlcss,
+  wkhtmltopdf,
+  nixosTests,
+}:
+
+let
+  odoo_version = "18.0";
+  odoo_release = "20250506";
+  python = python312.override {
+    self = python;
+  };
+in
+python.pkgs.buildPythonApplication rec {
+  pname = "odoo";
+  version = "${odoo_version}.${odoo_release}";
+
+  format = "setuptools";
+
+  src = fetchzip {
+    # find latest version on https://nightly.odoo.com/${odoo_version}/nightly/src
+    url = "https://nightly.odoo.com/${odoo_version}/nightly/src/odoo_${version}.zip";
+    name = "odoo-${version}";
+    hash = "sha256-rNG0He+51DnRT5g1SovGZ9uiE1HWXtcmAybcadBMjY4="; # odoo
+  };
+
+  makeWrapperArgs = [
+    "--prefix"
+    "PATH"
+    ":"
+    "${lib.makeBinPath [
+      wkhtmltopdf
+      rtlcss
+    ]}"
+  ];
+
+  propagatedBuildInputs = with python.pkgs; [
+    babel
+    chardet
+    cryptography
+    decorator
+    docutils
+    distutils
+    ebaysdk
+    freezegun
+    geoip2
+    gevent
+    greenlet
+    idna
+    jinja2
+    libsass
+    lxml
+    lxml-html-clean
+    markupsafe
+    num2words
+    ofxparse
+    passlib
+    pillow
+    polib
+    psutil
+    psycopg2
+    pydot
+    pyopenssl
+    pypdf2
+    pyserial
+    python-dateutil
+    python-ldap
+    python-stdnum
+    pytz
+    pyusb
+    qrcode
+    reportlab
+    requests
+    rjsmin
+    urllib3
+    vobject
+    werkzeug
+    xlrd
+    xlsxwriter
+    xlwt
+    zeep
+
+    setuptools
+    mock
+  ];
+
+  # takes 5+ minutes and there are not files to strip
+  dontStrip = true;
+
+  passthru = {
+    updateScript = ./update.sh;
+    tests = {
+      inherit (nixosTests) odoo;
+    };
+  };
+
+  meta = {
+    description = "Open Source ERP and CRM";
+    homepage = "https://www.odoo.com/";
+    license = lib.licenses.lgpl3Only;
+    maintainers = with lib.maintainers; [
+      mkg20001
+      siriobalmelli
+    ];
+  };
+}
diff --git a/pkgs/by-name/od/odoo18/update.sh b/pkgs/by-name/od/odoo18/update.sh
new file mode 100755
index 000000000000..2265f9048c0e
--- /dev/null
+++ b/pkgs/by-name/od/odoo18/update.sh
@@ -0,0 +1,32 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p curl gnused nix coreutils nix-prefetch
+# shellcheck shell=bash
+
+set -euo pipefail
+
+SCRIPT_DIR="$(dirname "${BASH_SOURCE[0]}")"
+PKG=$(basename "$SCRIPT_DIR")
+
+LATEST="18" # increment manually
+VERSION="${PKG/#odoo}"
+VERSION="${VERSION:-$LATEST}.0"
+
+RELEASE="$(
+    curl "https://nightly.odoo.com/$VERSION/nightly/src/" |
+        sed -nE 's/.*odoo_'"$VERSION"'.(20[0-9]{6}).tar.gz.*/\1/p' |
+        tail -n 1
+)"
+
+latestVersion="$VERSION.$RELEASE"
+currentVersion=$(nix-instantiate --eval -E "with import ./. {}; $PKG.version or (lib.getVersion $PKG)" | tr -d '"')
+
+if [[ "$currentVersion" == "$latestVersion" ]]; then
+    echo "$PKG is up-to-date: $currentVersion"
+    exit 0
+fi
+
+cd "$SCRIPT_DIR"
+
+sed -ri "s| hash.+ # odoo| hash = \"$(nix-prefetch -q fetchzip --option extra-experimental-features flakes --url "https://nightly.odoo.com/${VERSION}/nightly/src/odoo_${latestVersion}.zip")\"; # odoo|g" package.nix
+sed -ri "s|odoo_version = .+|odoo_version = \"$VERSION\";|" package.nix
+sed -ri "s|odoo_release = .+|odoo_release = \"$RELEASE\";|" package.nix