diff --git a/distributed-2021.3.1.tar.gz b/distributed-2021.3.1.tar.gz
deleted file mode 100644
index 843110f..0000000
--- a/distributed-2021.3.1.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:1f36247744e375d5d11c44a3b18891dfde42832132de3cb94efcb06b6da31f68
-size 697387
diff --git a/distributed-2021.4.0.tar.gz b/distributed-2021.4.0.tar.gz
new file mode 100644
index 0000000..cfe2f71
--- /dev/null
+++ b/distributed-2021.4.0.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7af2b77819a162d8f5973fb015be5a1641f47901d2e254409dafa2d7fcc3fce6
+size 701021
diff --git a/python-distributed.changes b/python-distributed.changes
index b2ce9ef..b3c99e8 100644
--- a/python-distributed.changes
+++ b/python-distributed.changes
@@ -1,3 +1,26 @@
+-------------------------------------------------------------------
+Sun Apr  4 16:37:00 UTC 2021 - Arun Persaud <arun@gmx.de>
+
+- update to version 2021.4.0:
+  * Fix un-merged frames (GH#4666) Matthew Rocklin
+  * Add informative error message to install uvloop (GH#4664) Matthew
+    Rocklin
+  * Remove incorrect comment regarding default LocalCluster creation
+    (GH#4660) cameron16
+  * Treat empty/missing writeable as a no-op (GH#4659) jakirkham
+  * Avoid list mutation in pickle_loads (GH#4653) Matthew Rocklin
+  * Ignore OSError exception when scaling down (GH#4633) Gerald
+  * Add isort to pre-commit hooks, package resorting (GH#4647) Charles
+    Blackmon-Luca
+  * Use powers-of-two when displaying RAM (GH#4649) crusaderky
+  * Support Websocket communication protocols (GH#4396) Marcos Moyano
+  * scheduler.py / worker.py code cleanup (GH#4626) crusaderky
+  * Update out-of-date references to config.yaml (GH#4643) Hristo
+    Georgiev
+  * Suppress OSError on SpecCluster shutdown (GH#4567) Jacob Tomlinson
+  * Replace conda with mamba (GH#4585) crusaderky
+  * Expand documentation on pure functions (GH#4644) James Lamb
+
 -------------------------------------------------------------------
 Fri Apr  2 10:06:50 UTC 2021 - Ben Greiner <code@bnavigator.de>
 
diff --git a/python-distributed.spec b/python-distributed.spec
index cff2590..9cd0ea3 100644
--- a/python-distributed.spec
+++ b/python-distributed.spec
@@ -24,18 +24,22 @@
 %define psuffix %{nil}
 %bcond_with test
 %endif
-
 %{?!python_module:%define python_module() python3-%{**}}
 %define skip_python2 1
 %define skip_python36 1
+%ifnarch %{ix86} %{arm}
+%define cythonize --with-cython
+# cython optimizations not supported on 32-bit: https://github.com/dask/dask/issues/7489
+%endif
 Name:           python-distributed%{psuffix}
-Version:        2021.3.1
+Version:        2021.4.0
 Release:        0
 Summary:        Library for distributed computing with Python
 License:        BSD-3-Clause
 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 Cython}
 BuildRequires:  %{python_module base >= 3.7}
 BuildRequires:  %{python_module setuptools}
 BuildRequires:  fdupes
@@ -50,23 +54,17 @@ Requires:       python-psutil >= 5.0
 Requires:       python-sortedcontainers
 Requires:       python-tblib
 Requires:       python-toolz >= 0.8.2
-Requires:       python-tornado
 Requires:       python-tornado >= 6.0.3
 Requires:       python-zict >= 0.1.3
-%ifnarch %ix86 %arm
-# cython optimizations not supported on 32-bit: https://github.com/dask/dask/issues/7489
-BuildRequires:  %{python_module Cython}
-%define cythonize --with-cython
-%endif
 %if %{with test}
 BuildRequires:  %{python_module PyYAML}
+BuildRequires:  %{python_module bokeh}
 BuildRequires:  %{python_module certifi}
 BuildRequires:  %{python_module click >= 6.6}
 BuildRequires:  %{python_module cloudpickle >= 1.5.0}
 BuildRequires:  %{python_module dask-all >= %{version}}
 # need built extension
 BuildRequires:  %{python_module distributed = %{version}}
-BuildRequires:  %{python_module bokeh}
 BuildRequires:  %{python_module ipykernel}
 BuildRequires:  %{python_module ipython}
 BuildRequires:  %{python_module jupyter_client}