diff --git a/domoticz.spec b/domoticz.spec
index 19cbe79..0257983 100644
--- a/domoticz.spec
+++ b/domoticz.spec
@@ -1,6 +1,6 @@
 Name:          domoticz
 Version:       2021.1
-Release:       3mamba
+Release:       4mamba
 Summary:       A Home Automation System that lets you monitor and configure various devices
 Group:         System/Kernel and Hardware
 Vendor:        openmamba
@@ -26,6 +26,7 @@ BuildRequires: libsqlite-devel
 BuildRequires: libusb-compat-devel
 BuildRequires: libz-devel
 ## AUTOBUILDREQ-END
+BuildRequires: libjsoncpp-devel >= 1.9.5
 BuildRequires: libfmt-devel >= 8.0.1
 BuildRequires: libminizip-devel >= 2.10.0-2mamba
 BuildRequires: libcereal-devel
@@ -109,6 +110,9 @@ install -d -m0755 %{buildroot}/var/lib/domoticz
 %doc License.txt
 
 %changelog
+* Mon Dec 20 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 2021.1-4mamba
+- rebuilt with libjsoncpp 1.9.5
+
 * Mon Oct 18 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 2021.1-3mamba
 - rebuilt with libfmt 8.0.1