diff --git a/distributed-1.21.6.tar.gz b/distributed-1.21.6.tar.gz
deleted file mode 100644
index b080d58..0000000
--- a/distributed-1.21.6.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:0fa6057c9b7aa0235ba240e7eb66ffbf5fc9d25a5c4b5cf1169d93bc582b8687
-size 472781
diff --git a/distributed-1.21.8.tar.gz b/distributed-1.21.8.tar.gz
new file mode 100644
index 0000000..9fe15ca
--- /dev/null
+++ b/distributed-1.21.8.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d80c82fc402406703ad7756fc7ce630311c57d883c23ac0021fdfeb674995362
+size 476060
diff --git a/python-distributed.changes b/python-distributed.changes
index 02ca69f..aa54f43 100644
--- a/python-distributed.changes
+++ b/python-distributed.changes
@@ -1,3 +1,35 @@
+-------------------------------------------------------------------
+Sun May  6 05:30:39 UTC 2018 - arun@gmx.de
+
+- specfile:
+  * Replace msgpack-python by msgpack
+  * updated required versions according to requirement.txt
+
+- update to version 1.21.8:
+  * Remove errant print statement (GH#1957) Matthew Rocklin
+  * Only add reevaluate_occupancy callback once (GH#1953) Tony Lorenzo
+
+- changes from version 1.21.7:
+  * Newline needed for doctest rendering (GH#1917) Loïc Estève
+  * Support Client._repr_html_ when in async mode (GH#1909) Matthew
+    Rocklin
+  * Add parameters to dask-ssh command (GH#1910) Irene Rodriguez
+  * Santize get_dataset trace (GH#1888) John Kirkham
+  * Fix bug where queues would not clean up cleanly (GH#1922) Matthew
+    Rocklin
+  * Delete cached file safely in upload file (GH#1921) Matthew Rocklin
+  * Accept KeyError when closing tornado IOLoop in tests (GH#1937)
+    Matthew Rocklin
+  * Quiet the client and scheduler when gather(…, errors=’skip’)
+    (:pr:`1936) Matthew Rocklin
+  * Clarify couldn’t gather keys warning (GH#1942) Kenneth Koski
+  * Support submit keywords in joblib (GH#1947) Matthew Rocklin
+  * Avoid use of external resources in bokeh server (GH#1934) Matthew
+    Rocklin
+  * Drop __contains__ from Datasets (GH#1889) John Kirkham
+  * Fix bug with queue timeouts (GH#1950) Matthew Rocklin
+  * Replace msgpack-python by msgpack (GH#1927) Loïc Estève
+
 -------------------------------------------------------------------
 Sat Apr  7 19:25:08 UTC 2018 - arun@gmx.de
 
diff --git a/python-distributed.spec b/python-distributed.spec
index 4994d70..69eb76e 100644
--- a/python-distributed.spec
+++ b/python-distributed.spec
@@ -20,12 +20,12 @@
 # Test requires network connection
 %bcond_with     test
 Name:           python-distributed
-Version:        1.21.6
+Version:        1.21.8
 Release:        0
 Summary:        Library for distributed computing with Python
 License:        BSD-3-Clause
 Group:          Development/Languages/Python
-Url:            https://distributed.readthedocs.io/en/latest/
+URL:            https://distributed.readthedocs.io/en/latest/
 Source:         https://files.pythonhosted.org/packages/source/d/distributed/distributed-%{version}.tar.gz
 Source99:       python-distributed-rpmlintrc
 BuildRequires:  %{python_module devel}
@@ -38,31 +38,31 @@ BuildRequires:  python2-futures
 Requires:       python-certifi
 Requires:       python-click >= 6.6
 Requires:       python-cloudpickle >= 0.2.2
-Requires:       python-dask >= 0.14.1
+Requires:       python-dask >= 0.17.0
 Requires:       python-joblib >= 0.10.2
-Requires:       python-msgpack-python
+Requires:       python-msgpack
 Requires:       python-psutil
 Requires:       python-scikit-learn >= 0.17.1
 Requires:       python-six
 Requires:       python-sortedcontainers
 Requires:       python-tblib
 Requires:       python-toolz >= 0.7.4
-Requires:       python-tornado >= 4.4
-Requires:       python-zict >= 0.1.2
+Requires:       python-tornado >= 4.5.1
+Requires:       python-zict >= 0.1.3
 BuildArch:      noarch
 %if %{with test}
 BuildRequires:  %{python_module certifi}
 BuildRequires:  %{python_module click >= 6.6}
 BuildRequires:  %{python_module cloudpickle >= 0.2.2}
-BuildRequires:  %{python_module dask >= 0.14.1}
-BuildRequires:  %{python_module msgpack-python}
+BuildRequires:  %{python_module dask >= 0.17.0}
+BuildRequires:  %{python_module msgpack}
 BuildRequires:  %{python_module psutil}
 BuildRequires:  %{python_module six}
 BuildRequires:  %{python_module sortedcontainers}
 BuildRequires:  %{python_module tblib}
 BuildRequires:  %{python_module toolz >= 0.7.4}
-BuildRequires:  %{python_module tornado >= 4.4}
-BuildRequires:  %{python_module zict >= 0.1.2}
+BuildRequires:  %{python_module tornado >= 4.5.1}
+BuildRequires:  %{python_module zict >= 0.1.3}
 %endif
 %ifpython2
 Requires:       python-futures