diff --git a/os-autoinst-4.6.1622223685.2259c969.obscpio b/os-autoinst-4.6.1622223685.2259c969.obscpio
deleted file mode 100644
index dd8600b..0000000
--- a/os-autoinst-4.6.1622223685.2259c969.obscpio
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:e357b0a0f7e7dcb1129faf9a5d411654c0ca398d0cce52b7c17522e3e1be1b4d
-size 25091597
diff --git a/os-autoinst-4.6.1622545881.99ce6034.obscpio b/os-autoinst-4.6.1622545881.99ce6034.obscpio
new file mode 100644
index 0000000..a45a707
--- /dev/null
+++ b/os-autoinst-4.6.1622545881.99ce6034.obscpio
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:03ed8bb42f64d56c5534777ad9e58d1d86c81f1f6a01c284c76ba73e26b2d4d9
+size 25092621
diff --git a/os-autoinst-test.spec b/os-autoinst-test.spec
index f265b71..03c4efe 100644
--- a/os-autoinst-test.spec
+++ b/os-autoinst-test.spec
@@ -19,7 +19,7 @@
 %define name_ext -test
 %define         short_name os-autoinst
 Name:           %{short_name}%{?name_ext}
-Version:        4.6.1622223685.2259c969
+Version:        4.6.1622545881.99ce6034
 Release:        0
 Summary:        test package for os-autoinst
 License:        GPL-2.0-or-later
diff --git a/os-autoinst.changes b/os-autoinst.changes
index a1a7250..be6b90e 100644
--- a/os-autoinst.changes
+++ b/os-autoinst.changes
@@ -1,3 +1,11 @@
+-------------------------------------------------------------------
+Tue Jun 01 11:31:44 UTC 2021 - okurz@suse.com
+
+- Update to version 4.6.1622545881.99ce6034:
+  * dist: Try to fix still appearing sporadic test timeouts in OBS environment
+  * Reformat python files with black
+  * Add 'black' for python code style check
+
 -------------------------------------------------------------------
 Fri May 28 17:41:31 UTC 2021 - okurz@suse.com
 
diff --git a/os-autoinst.obsinfo b/os-autoinst.obsinfo
index 53cf09d..8494c0d 100644
--- a/os-autoinst.obsinfo
+++ b/os-autoinst.obsinfo
@@ -1,5 +1,5 @@
 name: os-autoinst
-version: 4.6.1622223685.2259c969
-mtime: 1622223685
-commit: 2259c9694b1de7db72168128573f17d211a7a45c
+version: 4.6.1622545881.99ce6034
+mtime: 1622545881
+commit: 99ce603460300f0bbf92ef8e1fc3379f23c018da
 
diff --git a/os-autoinst.spec b/os-autoinst.spec
index 374e8ba..04548be 100644
--- a/os-autoinst.spec
+++ b/os-autoinst.spec
@@ -17,7 +17,7 @@
 
 
 Name:           os-autoinst
-Version:        4.6.1622223685.2259c969
+Version:        4.6.1622545881.99ce6034
 Release:        0
 Summary:        OS-level test automation
 License:        GPL-2.0-or-later
@@ -62,6 +62,17 @@ Source0:        %{name}-%{version}.tar.xz
 %else
 %define yamllint_requires %{nil}
 %endif
+%if 0%{?suse_version} >= 1550
+%bcond_without black
+%else
+%bcond_with black
+%endif
+%if %{with black}
+# The following line is generated from dependencies.yaml
+%define python_style_requires python3-black
+%else
+%define python_style_requires %{nil}
+%endif
 # The following line is generated from dependencies.yaml
 %define test_base_requires %main_requires cpio perl(Benchmark) perl(Devel::Cover) perl(FindBin) perl(Pod::Coverage) perl(Test::Fatal) perl(Test::Mock::Time) perl(Test::MockModule) perl(Test::MockObject) perl(Test::Mojo) perl(Test::Most) perl(Test::Output) perl(Test::Pod) perl(Test::Strict) perl(Test::Warnings) >= 0.029 procps python3-setuptools qemu qemu-tools qemu-x86
 # The following line is generated from dependencies.yaml
@@ -69,7 +80,7 @@ Source0:        %{name}-%{version}.tar.xz
 # The following line is generated from dependencies.yaml
 %define test_requires %build_requires %spellcheck_requires %test_base_requires %yamllint_requires perl(Inline::Python) perl(YAML::PP)
 # The following line is generated from dependencies.yaml
-%define devel_requires %test_requires perl(Devel::Cover) perl(Devel::Cover::Report::Codecov) perl(Perl::Tidy)
+%define devel_requires %python_style_requires %test_requires perl(Devel::Cover) perl(Devel::Cover::Report::Codecov) perl(Perl::Tidy)
 BuildRequires:  %test_requires %test_version_only_requires
 Requires:       %main_requires
 Recommends:     /usr/bin/Xvnc
@@ -170,7 +181,7 @@ export NO_BRP_STALE_LINK_ERROR=yes
 export CI=1
 # account for sporadic slowness in build environments
 # https://progress.opensuse.org/issues/89059
-export OPENQA_TEST_TIMEOUT_SCALE_CI=6
+export OPENQA_TEST_TIMEOUT_SCALE_CI=8
 cd %{__builddir}
 %cmake_build check-pkg-build