diff --git a/poetry.lock b/poetry.lock
index 4ddc15b..770e81f 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -687,7 +687,7 @@ test = ["black", "check-manifest", "flake8", "ipykernel", "ipython (<8.0.0)", "i
 
 [[package]]
 name = "nbconvert"
-version = "6.5.0"
+version = "6.5.1"
 description = "Converting Jupyter Notebooks"
 category = "dev"
 optional = false
@@ -701,6 +701,7 @@ entrypoints = ">=0.2.2"
 jinja2 = ">=3.0"
 jupyter-core = ">=4.7"
 jupyterlab-pygments = "*"
+lxml = "*"
 MarkupSafe = ">=2.0"
 mistune = ">=0.8.1,<2"
 nbclient = ">=0.5.0"
@@ -1905,8 +1906,8 @@ nbclient = [
     {file = "nbclient-0.6.0.tar.gz", hash = "sha256:3f89a403c6badf24d2855a455b69a80985b3b27e04111243fdb6a88a28d27031"},
 ]
 nbconvert = [
-    {file = "nbconvert-6.5.0-py3-none-any.whl", hash = "sha256:c56dd0b8978a1811a5654f74c727ff16ca87dd5a43abd435a1c49b840fcd8360"},
-    {file = "nbconvert-6.5.0.tar.gz", hash = "sha256:223e46e27abe8596b8aed54301fadbba433b7ffea8196a68fd7b1ff509eee99d"},
+    {file = "nbconvert-6.5.1-py3-none-any.whl", hash = "sha256:0a3e224ee753ac4dceeb0257c4a315c069dcc6f9f4ae0ad15c5ea84713d15e28"},
+    {file = "nbconvert-6.5.1.tar.gz", hash = "sha256:2c01f3f518fee736c3d3f999dd20e0a16febba17a0d60a3b0fd28fbdec14115d"},
 ]
 nbformat = [
     {file = "nbformat-5.3.0-py3-none-any.whl", hash = "sha256:38856d97de49e8292e2d5d8f595e9d26f02abfd87e075d450af4511870b40538"},