diff --git a/nbclient-0.5.13.tar.gz b/nbclient-0.5.13.tar.gz
deleted file mode 100644
index 1d3ed2f..0000000
--- a/nbclient-0.5.13.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:40c52c9b5e3c31faecaee69f202b3f53e38d7c1c563de0fadde9d7eda0fdafe8
-size 75191
diff --git a/nbclient-0.6.4.tar.gz b/nbclient-0.6.4.tar.gz
new file mode 100644
index 0000000..ad278fc
--- /dev/null
+++ b/nbclient-0.6.4.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cdef7757cead1735d2c70cc66095b072dced8a1e6d1c7639ef90cd3e04a11f2e
+size 78539
diff --git a/python-nbclient.changes b/python-nbclient.changes
index 738fbc2..aea563b 100644
--- a/python-nbclient.changes
+++ b/python-nbclient.changes
@@ -1,3 +1,40 @@
+-------------------------------------------------------------------
+Sat Jun  4 23:14:53 UTC 2022 - Arun Persaud <arun@gmx.de>
+
+- specfile:
+  * update requirements
+
+- update to version 0.6.4:
+  * Merged PRs
+    + Make sure kernel is cleaned up in case an error occurred while
+      starting kernel client #234 (@CiprianAnton)
+    + Suppress most warnings in tests #232 (@davidbrochart)
+
+- changes from version 0.6.3:
+  * Bugs fixed
+    + Clean up docs and typings #230 (@blink1073)
+  * Documentation improvements
+    + Clean up docs and typings #230 (@blink1073)
+
+- changes from version 0.6.2:
+  * Merged PRs
+    + Fix documentation generation #228 (@davidbrochart)
+
+- changes from version 0.6.1:
+  * Merged PRs
+    + [pre-commit.ci] pre-commit autoupdate #225 (@pre-commit-ci)
+    + Add error_on_interrupt trait #224 (@davidbrochart)
+    + Fix typo #223 (@davidbrochart)
+    + Add on_cell_executed hook #222 (@davidbrochart)
+
+- changes from version 0.6.0:
+  * Maintenance and upkeep improvements
+    + Fix typings and update mypy settings #220 (@blink1073)
+    + Add missing dep on testpath #219 (@blink1073)
+    + Add more pre-commit hooks and update flake8 #218 (@blink1073)
+  * Documentation improvements
+    + Clean up docs handling #216 (@blink1073)
+
 -------------------------------------------------------------------
 Sat Mar 12 04:52:28 UTC 2022 - Arun Persaud <arun@gmx.de>
 
diff --git a/python-nbclient.spec b/python-nbclient.spec
index 030cf8b..d542fe7 100644
--- a/python-nbclient.spec
+++ b/python-nbclient.spec
@@ -32,7 +32,7 @@
 %{?!python_module:%define python_module() python3-%{**}}
 %define         skip_python2 1
 Name:           python-nbclient%{psuffix}
-Version:        0.5.13
+Version:        0.6.4
 Release:        0
 Summary:        A client library for executing notebooks
 License:        BSD-3-Clause
@@ -45,7 +45,7 @@ BuildRequires:  python-rpm-macros
 Requires:       python-jupyter-client >= 6.1.5
 Requires:       python-nbformat >= 5.0
 Requires:       python-nest-asyncio
-Requires:       python-traitlets >= 5.0
+Requires:       python-traitlets >= 5.2.2
 BuildArch:      noarch
 %if %{with libalternatives}
 BuildRequires:  alts
@@ -56,11 +56,12 @@ Requires(postun):update-alternatives
 %endif
 %if %{with test}
 BuildRequires:  %{python_module ipykernel}
-BuildRequires:  %{python_module ipython}
+BuildRequires:  %{python_module ipython < 8}
 BuildRequires:  %{python_module ipywidgets < 8}
 BuildRequires:  %{python_module nbclient = %{version}}
 BuildRequires:  %{python_module pytest >= 4.1}
 BuildRequires:  %{python_module pytest-asyncio}
+BuildRequires:  %{python_module pytest-cov}
 BuildRequires:  %{python_module xmltodict}
 %endif
 %python_subpackages