diff --git a/poetry.lock b/poetry.lock
index c9e9c5c..74bd278 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -158,6 +158,27 @@ files = [
 [package.extras]
 test = ["pytest (>=6)"]
 
+[[package]]
+name = "html5lib"
+version = "1.1"
+description = "HTML parser based on the WHATWG HTML specification"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+files = [
+    {file = "html5lib-1.1-py2.py3-none-any.whl", hash = "sha256:0d78f8fde1c230e99fe37986a60526d7049ed4bf8a9fadbad5f00e22e58e041d"},
+    {file = "html5lib-1.1.tar.gz", hash = "sha256:b2e5b40261e20f354d198eae92afc10d750afb487ed5e50f9c4eaf07c184146f"},
+]
+
+[package.dependencies]
+six = ">=1.9"
+webencodings = "*"
+
+[package.extras]
+all = ["chardet (>=2.2)", "genshi", "lxml"]
+chardet = ["chardet (>=2.2)"]
+genshi = ["genshi"]
+lxml = ["lxml"]
+
 [[package]]
 name = "httptools"
 version = "0.6.1"
@@ -756,6 +777,7 @@ files = [
 ]
 
 [package.dependencies]
+html5lib = {version = ">=1.0,<2.0", optional = true, markers = "extra == \"html\""}
 isodate = ">=0.6.0,<0.7.0"
 pyparsing = ">=2.1.0,<4"
 
@@ -1099,6 +1121,17 @@ files = [
     {file = "wcwidth-0.2.13.tar.gz", hash = "sha256:72ea0c06399eb286d978fdedb6923a9eb47e1c486ce63e9b4e64fc18303972b5"},
 ]
 
+[[package]]
+name = "webencodings"
+version = "0.5.1"
+description = "Character encoding aliases for legacy web content"
+optional = false
+python-versions = "*"
+files = [
+    {file = "webencodings-0.5.1-py2.py3-none-any.whl", hash = "sha256:a0af1213f3c2226497a97e2b3aa01a7e4bee4f403f95be16fc9acd2947514a78"},
+    {file = "webencodings-0.5.1.tar.gz", hash = "sha256:b36a1c245f2d304965eb4e0a82848379241dc04b865afcc4aab16748587e1923"},
+]
+
 [[package]]
 name = "websockets"
 version = "13.1"
@@ -1223,4 +1256,4 @@ js = ["pyduktape2"]
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.8.1"
-content-hash = "4e3209528b3b32bf8ab4da09f3fe2d5f0caf7c904a7b048fd292ef7103500ad6"
+content-hash = "f8e7c569e4bed2f45ff09fa9c1ce34a0d68f2179971375266fa13508886372d1"
diff --git a/pyproject.toml b/pyproject.toml
index 557a239..4249020 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -63,7 +63,7 @@ include = [
 python = "^3.8.1"  # Poetry doesn't read from [project.requires-python]
 # Note, 3.8.0 is not supported, only 3.8.1 or above. See:
 # https://github.com/RDFLib/rdflib/blob/3bee979cd0e5b6efc57296b4fc43dd8ede8cf375/CHANGELOG.md?plain=1#L53
-rdflib = {version=">=6.3.2,<8.0", python = ">=3.8.1", extras=["http"]}
+rdflib = {version=">=6.3.2,<8.0", python = ">=3.8.1", extras=["html"]}
 owlrl = ">=6.0.2,<7"
 prettytable = [
     {version=">=3.5.0", python = ">=3.8,<3.12"},