diff --git a/nbconvert-6.4.0.tar.gz b/nbconvert-6.4.0.tar.gz
deleted file mode 100644
index b0db9dc..0000000
--- a/nbconvert-6.4.0.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:5412ec774c6db4fccecb8c4ba07ec5d37d6dcf5762593cb3d6ecbbeb562ebbe5
-size 901586
diff --git a/nbconvert-6.4.2.tar.gz b/nbconvert-6.4.2.tar.gz
new file mode 100644
index 0000000..267ad25
--- /dev/null
+++ b/nbconvert-6.4.2.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:eb2803db18f6facce6bf3b01b684fe47907994bd156d15eaccdf011e3d7f8164
+size 902691
diff --git a/python-nbconvert.changes b/python-nbconvert.changes
index d475f03..1a7740b 100644
--- a/python-nbconvert.changes
+++ b/python-nbconvert.changes
@@ -1,3 +1,20 @@
+-------------------------------------------------------------------
+Sat Feb 19 03:07:52 UTC 2022 - Arun Persaud <arun@gmx.de>
+
+- update to version 6.4.2:
+  * Adding theme support for WebPDF exporter (#1718)
+  * Add option to embed_images in Markdown cells (#1717)
+  * HTMLExporter: Add theme alias and docs (#1716)
+  * Add basic support for federated labextensions themes (#1703)
+  * Always hide the collapser element (#1712)
+  * Raise pyppeteer requirement to >=1,<1.1 (#1711)
+
+- changes from version 6.4.1:
+  * CodeMirror style bleed fix (#1710)
+  * Fix DOM structure of markdown cells in lab template (#1709)
+  * Fix styling regression (#1708)
+  * Handle needs_background cell metadata (#1704)
+
 -------------------------------------------------------------------
 Fri Jan  7 22:23:39 UTC 2022 - Ben Greiner <code@bnavigator.de>
 
diff --git a/python-nbconvert.spec b/python-nbconvert.spec
index c64f4f2..c4b2afa 100644
--- a/python-nbconvert.spec
+++ b/python-nbconvert.spec
@@ -24,17 +24,15 @@
 %define psuffix %{nil}
 %bcond_with test
 %endif
-
 %if 0%{?suse_version} > 1500
 %bcond_without libalternatives
 %else
 %bcond_with libalternatives
 %endif
-
 %{?!python_module:%define python_module() python3-%{**}}
 %define skip_python2 1
 Name:           python-nbconvert%{psuffix}
-Version:        6.4.0
+Version:        6.4.2
 Release:        0
 Summary:        Conversion of Jupyter Notebooks
 License:        BSD-3-Clause
@@ -62,19 +60,19 @@ Requires:       python-nbformat >= 4.4
 Requires:       python-pandocfilters >= 1.4.1
 Requires:       python-testpath
 Requires:       python-traitlets >= 5.0
-%if %{with libalternatives}
-Requires:       alts
-BuildRequires:  alts
-%else
-Requires(post): update-alternatives
-Requires(postun):update-alternatives
-%endif
 Recommends:     pandoc
 Recommends:     python-tornado >= 4.0
 Suggests:       %{name}-latex
 Provides:       python-jupyter_nbconvert = %{version}
 Obsoletes:      python-jupyter_nbconvert < %{version}
 BuildArch:      noarch
+%if %{with libalternatives}
+BuildRequires:  alts
+Requires:       alts
+%else
+Requires(post): update-alternatives
+Requires(postun):update-alternatives
+%endif
 %if %{with test}
 BuildRequires:  %{python_module ipykernel}
 BuildRequires:  %{python_module ipywidgets >= 7}