diff --git a/harden_osmo-stp.service.patch b/harden_osmo-stp.service.patch
new file mode 100644
index 0000000..4acacda
--- /dev/null
+++ b/harden_osmo-stp.service.patch
@@ -0,0 +1,24 @@
+Index: libosmo-sccp-1.4.0/contrib/systemd/osmo-stp.service
+===================================================================
+--- libosmo-sccp-1.4.0.orig/contrib/systemd/osmo-stp.service
++++ libosmo-sccp-1.4.0/contrib/systemd/osmo-stp.service
+@@ -3,6 +3,19 @@ Description=Osmocom STP (Signal Transfer
+ Documentation=https://osmocom.org/projects/osmo-stp/wiki
+ 
+ [Service]
++# added automatically, for details please see
++# https://en.opensuse.org/openSUSE:Security_Features#Systemd_hardening_effort
++ProtectSystem=full
++ProtectHome=true
++PrivateDevices=true
++ProtectHostname=true
++ProtectClock=true
++ProtectKernelTunables=true
++ProtectKernelModules=true
++ProtectKernelLogs=true
++ProtectControlGroups=true
++RestrictRealtime=true
++# end of automatic additions 
+ Type=simple
+ Restart=always
+ ExecStart=/usr/bin/osmo-stp -c /etc/osmocom/osmo-stp.cfg
diff --git a/libosmo-sccp.changes b/libosmo-sccp.changes
index ed5e3d8..6bb0a46 100644
--- a/libosmo-sccp.changes
+++ b/libosmo-sccp.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Tue Oct  5 06:18:17 UTC 2021 - Johannes Segitz <jsegitz@suse.com>
+
+- Added hardening to systemd service(s) (bsc#1181400). Added patch(es):
+  * harden_osmo-stp.service.patch
+
 -------------------------------------------------------------------
 Sun Mar 14 20:59:25 UTC 2021 - Jan Engelhardt <jengelh@inai.de>
 
diff --git a/libosmo-sccp.spec b/libosmo-sccp.spec
index 3fb5bf6..f371646 100644
--- a/libosmo-sccp.spec
+++ b/libosmo-sccp.spec
@@ -28,6 +28,7 @@ URL:            https://projects.osmocom.org/projects/libosmo-sccp
 #Git-Clone:	https://git.osmocom.org/libosmo-sccp
 Source:         https://github.com/osmocom/libosmo-sccp/archive/%version.tar.gz
 Patch1:         0001-build-fixes.patch
+Patch2:	harden_osmo-stp.service.patch
 BuildRequires:  automake >= 1.6
 BuildRequires:  libtool >= 2
 BuildRequires:  lksctp-tools-devel