diff --git a/devtools/constraints.min b/devtools/constraints.min
index 2a3f256b5..c4f677af6 100644
--- a/devtools/constraints.min
+++ b/devtools/constraints.min
@@ -6,6 +6,6 @@ pyparsing==2.1.0
 importlib-metadata==4.0.0
 berkeleydb==18.1.2
 networkx==2.0
-html5rdf==1.2.0
+html5rdf==1.2.1
 lxml==4.3.0
 orjson==3.9.14
diff --git a/docker/latest/requirements.in b/docker/latest/requirements.in
index cc344d2a6..3c6481126 100644
--- a/docker/latest/requirements.in
+++ b/docker/latest/requirements.in
@@ -1,4 +1,4 @@
 # This file is used for building a docker image of the latest rdflib release. It
 # will be updated by dependabot when new releases are made.
 rdflib==7.1.1
-html5rdf==1.2.0
+html5rdf==1.2.1
diff --git a/docker/latest/requirements.txt b/docker/latest/requirements.txt
index 4357e6d52..c0842001b 100644
--- a/docker/latest/requirements.txt
+++ b/docker/latest/requirements.txt
@@ -4,7 +4,7 @@
 #
 #    pip-compile docker/latest/requirements.in
 #
-html5rdf==1.2
+html5rdf==1.2.1
     # via -r docker/latest/requirements.in
 pyparsing==3.0.9
     # via rdflib
diff --git a/poetry.lock b/poetry.lock
index c2d3eb897..46e513c37 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -340,21 +340,15 @@ test = ["pytest (>=6)"]
 
 [[package]]
 name = "html5rdf"
-version = "1.2"
+version = "1.2.1"
 description = "HTML parser based on the WHATWG HTML specification"
 optional = true
 python-versions = ">=3.8"
 files = [
-    {file = "html5rdf-1.2-py2.py3-none-any.whl", hash = "sha256:08169aa52a98ee3a6d3456d83feb36211fb5edcbcf3e05f6d19e0136f581638c"},
-    {file = "html5rdf-1.2.tar.gz", hash = "sha256:08378cbbbb63993ba7bb5eb1eac44bf9ca7b1a23dbee3d2afef5376597fb00a5"},
+    {file = "html5rdf-1.2.1-py2.py3-none-any.whl", hash = "sha256:1f519121bc366af3e485310dc8041d2e86e5173c1a320fac3dc9d2604069b83e"},
+    {file = "html5rdf-1.2.1.tar.gz", hash = "sha256:ace9b420ce52995bb4f05e7425eedf19e433c981dfe7a831ab391e2fa2e1a195"},
 ]
 
-[package.extras]
-all = ["chardet (>=2.2.1)", "genshi (>=0.7.1)", "lxml (>=3.4.0)"]
-chardet = ["chardet (>=2.2.1)"]
-genshi = ["genshi (>=0.7.1)"]
-lxml = ["lxml (>=3.4.0)"]
-
 [[package]]
 name = "idna"
 version = "3.4"
@@ -1464,4 +1458,4 @@ orjson = ["orjson"]
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.8.1"
-content-hash = "71704ba175e33528872fab8121cb609041bd97b6a99f8f04022a26904941b27c"
+content-hash = "0718a437065a928b337f8e182e19f39d8a00dcf478d1a6c76c3bfd83bbc46d93"
diff --git a/pyproject.toml b/pyproject.toml
index 912168d60..dedced9a9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -43,7 +43,7 @@ isodate = {version=">=0.7.2,<1.0.0", python = "<3.11"}
 pyparsing = ">=2.1.0,<4"
 berkeleydb = {version = "^18.1.0", optional = true}
 networkx = {version = ">=2,<4", optional = true}
-html5rdf = {version = ">=1.2,<2", optional = true}
+html5rdf = {version = ">=1.2.1,<2", optional = true}
 lxml = {version = ">=4.3,<6.0", optional = true}
 orjson = {version = ">=3.9.14,<4", optional = true}