diff --git a/pyproject.toml b/pyproject.toml
index e06a94a..17e6a86 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -16,7 +16,7 @@ dependencies = [
     "sentencepiece==0.2.0",
     "tqdm==4.66.5",
     "numpy==1.26.4",
-    "elasticsearch==8.15.0",
+    "elasticsearch==9.1.1",
     "sentence-transformers==3.1.1",
     "requests==2.32.3",
     "beautifulsoup4==4.12.3",
diff --git a/requirements.txt b/requirements.txt
index 27bfce3..d87274f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ torch==2.4.0
 sentencepiece==0.2.0
 tqdm==4.66.5
 numpy==1.26.4
-elasticsearch==8.15.0
+elasticsearch==9.1.1
 sentence-transformers==3.1.1
 requests==2.32.3
 beautifulsoup4==4.12.3
diff --git a/uv.lock b/uv.lock
index 89e82d6..acb97c4 100644
--- a/uv.lock
+++ b/uv.lock
@@ -85,27 +85,30 @@ wheels = [
 
 [[package]]
 name = "elastic-transport"
-version = "8.17.1"
+version = "9.2.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "certifi" },
+    { name = "sniffio" },
     { name = "urllib3" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/6a/54/d498a766ac8fa475f931da85a154666cc81a70f8eb4a780bc8e4e934e9ac/elastic_transport-8.17.1.tar.gz", hash = "sha256:5edef32ac864dca8e2f0a613ef63491ee8d6b8cfb52881fa7313ba9290cac6d2", size = 73425, upload-time = "2025-03-13T07:28:30.776Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/a9/0c/b48a9041e921a75e4c0d17e0dfe929f4d72c4e523084cbe5574101b7a40d/elastic_transport-9.2.0.tar.gz", hash = "sha256:0331466ca8febdb7d168c0fbf159294b0066492733b51da94f4dd28a0ee596cd", size = 77332, upload-time = "2025-10-17T16:12:49.906Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/cf/cd/b71d5bc74cde7fc6fd9b2ff9389890f45d9762cbbbf81dc5e51fd7588c4a/elastic_transport-8.17.1-py3-none-any.whl", hash = "sha256:192718f498f1d10c5e9aa8b9cf32aed405e469a7f0e9d6a8923431dbb2c59fb8", size = 64969, upload-time = "2025-03-13T07:28:29.031Z" },
+    { url = "https://files.pythonhosted.org/packages/36/4a/6a1cc529ec609dae4d681baddde9ad965b8952d1f56dadbb1d27fbb50ec9/elastic_transport-9.2.0-py3-none-any.whl", hash = "sha256:f52b961e58e6b76d488993286907f61a6ddccbdae8e0135ce8d369227b6282d8", size = 65317, upload-time = "2025-10-17T16:12:48.437Z" },
 ]
 
 [[package]]
 name = "elasticsearch"
-version = "8.15.0"
+version = "9.1.1"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "elastic-transport" },
+    { name = "python-dateutil" },
+    { name = "typing-extensions" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/ef/b0/735e07106fe67c20b95ac02feb3b843b5a36df95bdd79eac21b7d43fa34b/elasticsearch-8.15.0.tar.gz", hash = "sha256:d4702b4fa698ef154c6f1187988192343fb5505aee97fc4450a6d20df1683f35", size = 412860, upload-time = "2024-08-13T16:01:28.205Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/59/6a/5eecef6f1ac8005b04714405cb65971d46031bd897e47c29af86e0f87353/elasticsearch-9.1.1.tar.gz", hash = "sha256:be20acda2a97591a9a6cf4981fc398ee6fca3291cf9e7a9e52b6a9f41a46d393", size = 857802, upload-time = "2025-09-12T13:27:38.62Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/ab/dc/87c47f9c42f8188d24f6c589ed0e8168a0fef7091e5ccffdbc950be7ab66/elasticsearch-8.15.0-py3-none-any.whl", hash = "sha256:7ec4d0771b8f6f76c6331e61b408261f9307264735ec7f2539f580824faaafe3", size = 523322, upload-time = "2024-08-13T16:01:23.765Z" },
+    { url = "https://files.pythonhosted.org/packages/cf/4c/c0c95d3d881732a5d1b28e12c9be4dea5953ade71810f94565bd5bd2101a/elasticsearch-9.1.1-py3-none-any.whl", hash = "sha256:2a5c27c57ca3dd3365f665c82c9dcd8666ccfb550d5b07c688c21ec636c104e5", size = 937483, upload-time = "2025-09-12T13:27:34.948Z" },
 ]
 
 [[package]]
@@ -484,6 +487,18 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/ee/49/1377b49de7d0c1ce41292161ea0f721913fa8722c19fb9c1e3aa0367eecb/pytest_cov-7.0.0-py3-none-any.whl", hash = "sha256:3b8e9558b16cc1479da72058bdecf8073661c7f57f7d3c5f22a1c23507f2d861", size = 22424, upload-time = "2025-09-09T10:57:00.695Z" },
 ]
 
+[[package]]
+name = "python-dateutil"
+version = "2.9.0.post0"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "six" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/66/c0/0c8b6ad9f17a802ee498c46e004a0eb49bc148f2fd230864601a86dcf6db/python-dateutil-2.9.0.post0.tar.gz", hash = "sha256:37dd54208da7e1cd875388217d5e00ebd4179249f90fb72437e91a35459a0ad3", size = 342432, upload-time = "2024-03-01T18:36:20.211Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/ec/57/56b9bcc3c9c6a792fcbaf139543cee77261f3651ca9da0c93f5c1221264b/python_dateutil-2.9.0.post0-py2.py3-none-any.whl", hash = "sha256:a8b2bc7bffae282281c8140a97d3aa9c14da0b136dfe83f850eea9a5f7470427", size = 229892, upload-time = "2024-03-01T18:36:18.57Z" },
+]
+
 [[package]]
 name = "pyyaml"
 version = "6.0.3"
@@ -629,7 +644,7 @@ wheels = [
 
 [[package]]
 name = "semindex"
-version = "0.4.0"
+version = "0.4.2"
 source = { editable = "." }
 dependencies = [
     { name = "beautifulsoup4" },
@@ -671,7 +686,7 @@ languages = [
 requires-dist = [
     { name = "beautifulsoup4", specifier = "==4.12.3" },
     { name = "colorama", specifier = ">=0.4.6" },
-    { name = "elasticsearch", specifier = "==8.15.0" },
+    { name = "elasticsearch", specifier = "==9.1.1" },
     { name = "faiss-cpu", specifier = "==1.8.0" },
     { name = "html2text", specifier = "==2024.2.26" },
     { name = "llama-cpp-python", specifier = ">=0.3.16" },
@@ -742,6 +757,24 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/a3/dc/17031897dae0efacfea57dfd3a82fdd2a2aeb58e0ff71b77b87e44edc772/setuptools-80.9.0-py3-none-any.whl", hash = "sha256:062d34222ad13e0cc312a4c02d73f059e86a4acbfbdea8f8f76b28c99f306922", size = 1201486, upload-time = "2025-05-27T00:56:49.664Z" },
 ]
 
+[[package]]
+name = "six"
+version = "1.17.0"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/94/e7/b2c673351809dca68a0e064b6af791aa332cf192da575fd474ed7d6f16a2/six-1.17.0.tar.gz", hash = "sha256:ff70335d468e7eb6ec65b95b99d3a2836546063f63acc5171de367e834932a81", size = 34031, upload-time = "2024-12-04T17:35:28.174Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/b7/ce/149a00dd41f10bc29e5921b496af8b574d8413afcd5e30dfa0ed46c2cc5e/six-1.17.0-py2.py3-none-any.whl", hash = "sha256:4721f391ed90541fddacab5acf947aa0d3dc7d27b2e1e8eda2be8970586c3274", size = 11050, upload-time = "2024-12-04T17:35:26.475Z" },
+]
+
+[[package]]
+name = "sniffio"
+version = "1.3.1"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/a2/87/a6771e1546d97e7e041b6ae58d80074f81b7d5121207425c964ddf5cfdbd/sniffio-1.3.1.tar.gz", hash = "sha256:f4324edc670a0f49750a81b895f35c3adb843cca46f0530f79fc1babb23789dc", size = 20372, upload-time = "2024-02-25T23:20:04.057Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/e9/44/75a9c9421471a6c4805dbf2356f7c181a29c1879239abab1ea2cc8f38b40/sniffio-1.3.1-py3-none-any.whl", hash = "sha256:2f6da418d1f1e0fddd844478f41680e794e6051915791a034ff65e5f100525a2", size = 10235, upload-time = "2024-02-25T23:20:01.196Z" },
+]
+
 [[package]]
 name = "soupsieve"
 version = "2.8"