diff --git a/README.md b/README.md
index 73a9446..0c93d45 100644
--- a/README.md
+++ b/README.md
@@ -9,3 +9,7 @@ Currently it supports the following tests:
  - FedCloud Accounting Freshness
  - OCCI compute create
  - Perun
+
+This work is co-funded by the [EOSC-hub project](http://eosc-hub.eu/) (Horizon 2020) under Grant number 777536.
+<img src="https://wiki.eosc-hub.eu/download/attachments/1867786/eu%20logo.jpeg?version=1&modificationDate=1459256840098&api=v2" height="24">
+<img src="https://wiki.eosc-hub.eu/download/attachments/18973612/eosc-hub-web.png?version=1&modificationDate=1516099993132&api=v2" height="24">
diff --git a/nagios-plugins-fedcloud.spec b/nagios-plugins-fedcloud.spec
index 8aebb1f..3684fb8 100644
--- a/nagios-plugins-fedcloud.spec
+++ b/nagios-plugins-fedcloud.spec
@@ -2,21 +2,26 @@
 %{!?python_sitelib: %global python_sitelib %(%{__python} -c "from distutils.sysconfig import get_python_lib; print get_python_lib()")}
 %define dir /usr/libexec/argo-monitoring/probes/fedcloud
 
-Summary: Nagios plugins for EGI FedCloud services
-Name: nagios-plugins-fedcloud
-Version: 0.5.0
-Release: 1%{?dist}
-License: ASL 2.0
-Group: Network/Monitoring
-Source0: %{name}-%{version}.tar.gz
+Summary:   Nagios plugins for EGI FedCloud services
+Name:      nagios-plugins-fedcloud
+Version:   0.5.1
+Release:   1%{?dist}
+License:   ASL 2.0
+Group:     Network/Monitoring
+Source0:   %{name}-%{version}.tar.gz
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root
 BuildArch: noarch
-Requires: python >= 2.6
-Requires: python-argparse
-Requires: python-requests
-Requires: python2-ndg_httpsclient
+Requires:  python >= 2.6
+Requires:  python-requests
 %description
 
+%if 0%{?el7:1}
+Requires:       python-ndg_httpsclient
+%else
+Requires:       python2-ndg_httpsclient
+Requires:       python-argparse
+%endif
+
 %prep
 %setup -q
 
@@ -42,6 +47,10 @@ rm -rf $RPM_BUILD_ROOT
 %endif
 
 %changelog
+* Tue Mar 31 2020 Daniel Vrcic <dvrcic@srce.hr> - 0.5.1-1%{?dist}
+- Fix perun.cesnet.cz address
+- Add EOSC-hub acknowledgement
+- vary spec dependency according to Centos version 
 * Thu Oct 3 2019 Emir Imamagic <eimamagi@srce.hr> - 0.5.0-1%{?dist}
 - Support for new version of cloudkeeper
 - Refactor authentication
diff --git a/src/check_perun b/src/check_perun
index 0828255..2e174be 100755
--- a/src/check_perun
+++ b/src/check_perun
@@ -22,7 +22,7 @@ KEY_PATH=/etc/nagios/globus/robokey.pem
 if [ "x$1" != "x" ]; then
   PERUN_URL_BASE=$1
 else
-  PERUN_URL_BASE=https://perun.cesnet.cz/cert/rpc/
+  PERUN_URL_BASE=https://perun.egi.eu/cert/rpc/
 fi
 
 # Query Perun RPC