diff --git a/postgresql-13.3.tar.bz2 b/postgresql-13.3.tar.bz2
deleted file mode 100644
index 27ec868..0000000
--- a/postgresql-13.3.tar.bz2
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:3cd9454fa8c7a6255b6743b767700925ead1b9ab0d7a0f9dcb1151010f8eb4a1
-size 21119109
diff --git a/postgresql-13.3.tar.bz2.sha256 b/postgresql-13.3.tar.bz2.sha256
deleted file mode 100644
index 946d56e..0000000
--- a/postgresql-13.3.tar.bz2.sha256
+++ /dev/null
@@ -1 +0,0 @@
-3cd9454fa8c7a6255b6743b767700925ead1b9ab0d7a0f9dcb1151010f8eb4a1  postgresql-13.3.tar.bz2
diff --git a/postgresql-13.4.tar.bz2 b/postgresql-13.4.tar.bz2
new file mode 100644
index 0000000..750214c
--- /dev/null
+++ b/postgresql-13.4.tar.bz2
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ea93e10390245f1ce461a54eb5f99a48d8cabd3a08ce4d652ec2169a357bc0cd
+size 21157443
diff --git a/postgresql-13.4.tar.bz2.sha256 b/postgresql-13.4.tar.bz2.sha256
new file mode 100644
index 0000000..ff4161a
--- /dev/null
+++ b/postgresql-13.4.tar.bz2.sha256
@@ -0,0 +1 @@
+ea93e10390245f1ce461a54eb5f99a48d8cabd3a08ce4d652ec2169a357bc0cd  postgresql-13.4.tar.bz2
diff --git a/postgresql13.changes b/postgresql13.changes
index 743a86e..a333163 100644
--- a/postgresql13.changes
+++ b/postgresql13.changes
@@ -1,3 +1,16 @@
+-------------------------------------------------------------------
+Tue Aug 24 12:45:53 UTC 2021 - Marcus Rueckert <mrueckert@suse.de>
+
+- Upgrade to version 13.4:
+  https://www.postgresql.org/docs/13/release-13-4.html
+  * CVE-2021-3677 (boo#1189748)
+    The planner could create an incorrect plan in cases where two
+    ProjectionPaths were stacked on top of each other. The only
+    known way to trigger that situation involves parallel sort
+    operations, but there may be other instances. The result would
+    be crashes or incorrect query results. Disclosure of server
+    memory contents is also possible.
+
 -------------------------------------------------------------------
 Wed May 19 15:24:24 UTC 2021 - Reinhard Max <max@suse.com>
 
diff --git a/postgresql13.spec b/postgresql13.spec
index dc152fe..cd4a195 100644
--- a/postgresql13.spec
+++ b/postgresql13.spec
@@ -1,5 +1,5 @@
 #
-# spec file for package postgresql13
+# spec file
 #
 # Copyright (c) 2021 SUSE LLC
 #
@@ -16,7 +16,7 @@
 #
 
 
-%define pgversion 13.3
+%define pgversion 13.4
 %define pgmajor 13
 %define pgsuffix %pgmajor
 %define buildlibs 1
@@ -159,7 +159,7 @@ Provides:       postgresql = %version-%release
 Provides:       postgresql-implementation = %version-%release
 Requires:       %libpq >= %version
 Requires(post): postgresql-noarch >= %pgmajor
-Requires(postun): postgresql-noarch >= %pgmajor
+Requires(postun):postgresql-noarch >= %pgmajor
 # At this point we changed the package layout on SLE and conflict with
 # older releases to get a clean cut.
 Conflicts:      postgresql-noarch < 12.0.1
@@ -227,9 +227,9 @@ Requires:       this-is-only-for-build-envs
 Provides:       %libecpg = %version-%release
 Provides:       %libpq = %version-%release
 Provides:       %pgname-devel = %version-%release
-Conflicts:      %pgname-devel
 Conflicts:      %libecpg
 Conflicts:      %libpq
+Conflicts:      %pgname-devel
 %else
 Requires:       %libecpg >= %version
 Requires:       %libpq >= %version
@@ -248,7 +248,7 @@ Provides:       %pgname-server-devel = %version-%release
 Provides:       postgresql-server-devel = %version-%release
 Provides:       postgresql-server-devel-implementation = %version-%release
 Requires(post): postgresql-server-noarch >= %pgmajor
-Requires(postun): postgresql-server-noarch >= %pgmajor
+Requires(postun):postgresql-server-noarch >= %pgmajor
 Requires:       %pgname-devel = %version
 Requires:       %pgname-server = %version-%release
 # Installation of postgresql??-devel is exclusive
@@ -307,10 +307,10 @@ Recommends:     %{name}-llvmjit
 Provides:       postgresql-server-implementation = %version-%release
 Requires:       %libpq >= %version
 Requires(pre):  postgresql-server-noarch >= %pgmajor
-Requires(preun): postgresql-server-noarch >= %pgmajor
-Requires(postun): postgresql-server-noarch >= %pgmajor
+Requires(preun):postgresql-server-noarch >= %pgmajor
+Requires(postun):postgresql-server-noarch >= %pgmajor
 Requires(post): postgresql-noarch >= %pgmajor
-Requires(postun): postgresql-noarch >= %pgmajor
+Requires(postun):postgresql-noarch >= %pgmajor
 
 %description server
 PostgreSQL is an advanced object-relational database management system
@@ -442,7 +442,7 @@ that supports an extended subset of the SQL standard, including
 transactions, foreign keys, subqueries, triggers, and user-defined
 types and functions.
 
-This package contains the PL/Tcl procedural language for PostgreSQL. 
+This package contains the PL/Tcl procedural language for PostgreSQL.
 With thie module one can use Tcl to write stored procedures, functions,
 and triggers.
 
@@ -722,7 +722,7 @@ cat server-devel.files >> devel.files
 cat > libpq.files <<EOF
 %defattr(-,root,root)
 %dir %pgdatadir
-%pgdatadir/pg_service.conf.sample 
+%pgdatadir/pg_service.conf.sample
 EOF
 find %buildroot -name 'libpq*.so.*' -printf '/%%P\n' >> libpq.files
 %find_lang libpq5-$VLANG libpq.files
@@ -922,6 +922,7 @@ fi
 %if %buildlibs && %mini
 %files %devel -f devel.files -f libpq.files -f libecpg.files
 %else
+
 %files %devel -f devel.files
 %endif