diff --git a/poetry.lock b/poetry.lock
index d3bd3a7..7324f0f 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -361,20 +361,6 @@ files = [
     {file = "iniconfig-2.0.0.tar.gz", hash = "sha256:2d91e135bf72d31a410b17c16da610a82cb55f6b0477d1a902134b24a455b8b3"},
 ]
 
-[[package]]
-name = "isodate"
-version = "0.6.1"
-description = "An ISO 8601 date/time/duration parser and formatter"
-optional = false
-python-versions = "*"
-files = [
-    {file = "isodate-0.6.1-py2.py3-none-any.whl", hash = "sha256:0751eece944162659049d35f4f549ed815792b38793f07cf73381c1c87cbed96"},
-    {file = "isodate-0.6.1.tar.gz", hash = "sha256:48c5881de7e8b0a0d648cb024c8062dc84e7b840ed81e864c7614fd3c127bde9"},
-]
-
-[package.dependencies]
-six = "*"
-
 [[package]]
 name = "jinja2"
 version = "3.1.4"
@@ -818,24 +804,24 @@ files = [
 
 [[package]]
 name = "rdflib"
-version = "7.0.0"
+version = "7.1.1"
 description = "RDFLib is a Python library for working with RDF, a simple yet powerful language for representing information."
 optional = false
-python-versions = ">=3.8.1,<4.0.0"
+python-versions = "<4.0.0,>=3.8.1"
 files = [
-    {file = "rdflib-7.0.0-py3-none-any.whl", hash = "sha256:0438920912a642c866a513de6fe8a0001bd86ef975057d6962c79ce4771687cd"},
-    {file = "rdflib-7.0.0.tar.gz", hash = "sha256:9995eb8569428059b8c1affd26b25eac510d64f5043d9ce8c84e0d0036e995ae"},
+    {file = "rdflib-7.1.1-py3-none-any.whl", hash = "sha256:e590fa9a2c34ba33a667818b5a84be3fb8a4d85868f8038f17912ec84f912a25"},
+    {file = "rdflib-7.1.1.tar.gz", hash = "sha256:164de86bd3564558802ca983d84f6616a4a1a420c7a17a8152f5016076b2913e"},
 ]
 
 [package.dependencies]
-isodate = ">=0.6.0,<0.7.0"
 pyparsing = ">=2.1.0,<4"
 
 [package.extras]
 berkeleydb = ["berkeleydb (>=18.1.0,<19.0.0)"]
-html = ["html5lib (>=1.0,<2.0)"]
-lxml = ["lxml (>=4.3.0,<5.0.0)"]
-networkx = ["networkx (>=2.0.0,<3.0.0)"]
+html = ["html5rdf (>=1.2,<2)"]
+lxml = ["lxml (>=4.3,<6.0)"]
+networkx = ["networkx (>=2,<4)"]
+orjson = ["orjson (>=3.9.14,<4)"]
 
 [[package]]
 name = "rich"
@@ -893,17 +879,6 @@ files = [
     {file = "shellingham-1.5.4.tar.gz", hash = "sha256:8dbca0739d487e5bd35ab3ca4b36e11c4078f3a234bfce294b0a0291363404de"},
 ]
 
-[[package]]
-name = "six"
-version = "1.16.0"
-description = "Python 2 and 3 compatibility utilities"
-optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*"
-files = [
-    {file = "six-1.16.0-py2.py3-none-any.whl", hash = "sha256:8abb2f1d86890a2dfb989f9a77cfcfd3e47c2a354b01111771326f8aa26e0254"},
-    {file = "six-1.16.0.tar.gz", hash = "sha256:1e61c37477a1626458e36f7b1d82aa5c9b094fa4802892072e49de9c60c4c926"},
-]
-
 [[package]]
 name = "sniffio"
 version = "1.3.1"
@@ -1246,4 +1221,4 @@ files = [
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.11"
-content-hash = "4e42db8b57c13c2a19b9920a69d9d853bb73bd0c7d34fcf6fb9fbfacc93c5d1d"
+content-hash = "e861223dfdf4c46c1ff3049e4790727200d30b195f2563c936418af16a919482"
diff --git a/pyproject.toml b/pyproject.toml
index ee5a8e4..037f6a7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,6 +14,7 @@ sparqlwrapper = "^2.0.0"
 pydantic = "^2.9.2"
 
 
+rdflib = "^7.1.1"
 [tool.poetry.group.dev.dependencies]
 ruff = "^0.7.0"
 deptry = "^0.20.0"