diff --git a/bison-3.3.2.tar.xz b/bison-3.3.2.tar.xz
deleted file mode 100644
index 593382e..0000000
--- a/bison-3.3.2.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:039ee45b61d95e5003e7e8376f9080001b4066ff357bde271b7faace53b9d804
-size 2108612
diff --git a/bison-3.3.2.tar.xz.sig b/bison-3.3.2.tar.xz.sig
deleted file mode 100644
index c10cbbe..0000000
--- a/bison-3.3.2.tar.xz.sig
+++ /dev/null
@@ -1,6 +0,0 @@
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diff --git a/bison-3.4.1.tar.xz b/bison-3.4.1.tar.xz
new file mode 100644
index 0000000..5f90f5d
--- /dev/null
+++ b/bison-3.4.1.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:27159ac5ebf736dffd5636fd2cd625767c9e437de65baa63cb0de83570bd820d
+size 2198020
diff --git a/bison-3.4.1.tar.xz.sig b/bison-3.4.1.tar.xz.sig
new file mode 100644
index 0000000..0b2ef15
--- /dev/null
+++ b/bison-3.4.1.tar.xz.sig
@@ -0,0 +1,6 @@
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diff --git a/bison.changes b/bison.changes
index 05487df..31c43f8 100644
--- a/bison.changes
+++ b/bison.changes
@@ -1,3 +1,11 @@
+-------------------------------------------------------------------
+Tue May 28 08:43:17 UTC 2019 - Martin Pluskal <mpluskal@suse.com>
+
+- Update to version 3.4.1
+  * Multiple changes, mostly bugfixes - see provided NEWS for
+    details
+- Do not run any tests in parallel - this caused random failures
+
 -------------------------------------------------------------------
 Sat Feb 16 06:45:57 UTC 2019 - Bernhard Wiedemann <bwiedemann@suse.com>
 
diff --git a/bison.spec b/bison.spec
index 5ce8c93..b6600f5 100644
--- a/bison.spec
+++ b/bison.spec
@@ -17,7 +17,7 @@
 
 
 Name:           bison
-Version:        3.3.2
+Version:        3.4.1
 Release:        0
 Summary:        The GNU Parser Generator
 License:        GPL-3.0-or-later
@@ -55,7 +55,7 @@ Bison is a parser generator similar to yacc(1).
 %if 0%{?do_profiling}
   make %{?_smp_mflags} CFLAGS="%{optflags} %{cflags_profile_generate}" V=1
   # non-parallel profiling for reproducible results https://bugzilla.opensuse.org/show_bug.cgi?id=1040589
-  make CFLAGS="%{optflags}" check
+  make --jobs=1 CFLAGS="%{optflags}" check
   make %{?_smp_mflags} clean
   make %{?_smp_mflags} CFLAGS="%{optflags} %{cflags_profile_feedback}" V=1
 %else
@@ -63,12 +63,21 @@ Bison is a parser generator similar to yacc(1).
 %endif
 
 %check
-make %{?_smp_mflags} check
+# Tests dont work reliably in parallel
+make --jobs=1 check
 
 %install
 %make_install
 %find_lang %{name} --all-name
 
+%post
+%install_info --info-dir=%{_infodir} %{_infodir}/%{name}.info.gz
+
+%preun
+%install_info_delete --info-dir=%{_infodir} %{_infodir}/%{name}.info.gz
+
+%files lang -f %{name}.lang
+
 %files
 %{_docdir}/%{name}
 %dir %{_datadir}/aclocal
@@ -82,12 +91,4 @@ make %{?_smp_mflags} check
 %{_mandir}/man1/bison.1%{?ext_man}
 %{_mandir}/man1/yacc.1%{?ext_man}
 
-%files lang -f %{name}.lang
-
-%post
-%install_info --info-dir=%{_infodir} %{_infodir}/%{name}.info.gz
-
-%preun
-%install_info_delete --info-dir=%{_infodir} %{_infodir}/%{name}.info.gz
-
 %changelog