diff --git a/pkgs/by-name/op/open-webui/package.nix b/pkgs/by-name/op/open-webui/package.nix
index 4669146115d5..5616395cfd9d 100644
--- a/pkgs/by-name/op/open-webui/package.nix
+++ b/pkgs/by-name/op/open-webui/package.nix
@@ -7,19 +7,19 @@
 }:
 let
   pname = "open-webui";
-  version = "0.3.21";
+  version = "0.3.28";
 
   src = fetchFromGitHub {
     owner = "open-webui";
     repo = "open-webui";
     rev = "refs/tags/v${version}";
-    hash = "sha256-b+r+nEv+9IM56KkCi9tZqnEbyCX69mFhp0Be5/9lR9c=";
+    hash = "sha256-DjwHylu6ke74dxPuMDbLMrfWL9yvmh4W8QGyLzzUZVg=";
   };
 
   frontend = buildNpmPackage {
     inherit pname version src;
 
-    npmDepsHash = "sha256-LH07LzYZpVzRAvkjoTgt7LJdXZZoDMt//ZAl30z7AHw=";
+    npmDepsHash = "sha256-AWKIqijjTKJJFOzFIcSas+cAq0mZSsYGsVNpk2yQ4ZE=";
 
     # Disabling `pyodide:fetch` as it downloads packages during `buildPhase`
     # Until this is solved, running python packages from the browser will not work.
@@ -76,8 +76,10 @@ python3.pkgs.buildPythonApplication rec {
     black
     boto3
     chromadb
+    colbert-ai
     docx2txt
     duckduckgo-search
+    einops
     extract-msg
     fake-useragent
     fastapi
@@ -103,6 +105,7 @@ python3.pkgs.buildPythonApplication rec {
     psycopg2
     pydub
     pyjwt
+    pymilvus
     pymongo
     pymysql
     pypandoc
diff --git a/pkgs/development/python-modules/colbert-ai/default.nix b/pkgs/development/python-modules/colbert-ai/default.nix
new file mode 100644
index 000000000000..a7d707d38370
--- /dev/null
+++ b/pkgs/development/python-modules/colbert-ai/default.nix
@@ -0,0 +1,69 @@
+{
+  lib,
+  buildPythonPackage,
+  fetchPypi,
+
+  # build-system
+  setuptools,
+
+  # dependencies
+  bitarray,
+  datasets,
+  flask,
+  python-dotenv,
+  ninja,
+  scipy,
+  tqdm,
+  transformers,
+  ujson,
+  gitpython,
+  torch,
+  faiss,
+}:
+
+buildPythonPackage rec {
+  pname = "colbert-ai";
+  version = "0.2.21";
+  pyproject = true;
+
+  src = fetchPypi {
+    inherit version;
+    pname = "colbert_ai";
+    hash = "sha256-qNb9tOInLysI7Tf45QlgchYNhBXR5AWFdRiYt35iW6s=";
+  };
+
+  pythonRemoveDeps = [ "git-python" ];
+
+  build-system = [
+    setuptools
+  ];
+
+  dependencies = [
+    bitarray
+    datasets
+    faiss
+    flask
+    gitpython
+    python-dotenv
+    ninja
+    scipy
+    torch
+    tqdm
+    transformers
+    ujson
+  ];
+
+  pythonImportsCheck = [ "colbert" ];
+
+  # There is no tests
+  doCheck = false;
+
+  meta = {
+    description = "Fast and accurate retrieval model, enabling scalable BERT-based search over large text collections in tens of milliseconds";
+    homepage = "https://github.com/stanford-futuredata/ColBERT";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [
+      bachp
+    ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 9179287a858f..584ca15af3d4 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -2438,6 +2438,8 @@ self: super: with self; {
 
   colander = callPackage ../development/python-modules/colander { };
 
+  colbert-ai = callPackage ../development/python-modules/colbert-ai { };
+
   collections-extended = callPackage ../development/python-modules/collections-extended { };
 
   collidoscope = callPackage ../development/python-modules/collidoscope { };