diff --git a/iguanair.spec b/iguanair.spec
index 88be684..8d4f373 100644
--- a/iguanair.spec
+++ b/iguanair.spec
@@ -1,6 +1,6 @@
 Name:          iguanair
 Version:       20160823git
-Release:       1mamba
+Release:       2mamba
 Summary:       Iguanaworks USB IR Project: firmware and software
 Group:         System/Kernel and Hardware
 Vendor:        openmamba
@@ -15,6 +15,7 @@ BuildRequires: glibc-devel
 BuildRequires: libpython3-devel
 BuildRequires: libusb-devel
 ## AUTOBUILDREQ-END
+BuildRequires: libpython3-devel >= 3.7
 Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
 BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
@@ -62,7 +63,7 @@ This package contains libraries and header files for developing applications tha
 %defattr(-,root,root)
 %{_sysconfdir}/default/iguanaIR
 %{_sysconfdir}/init.d/iguanaIR
-/lib/udev/rules.d/80-iguanaIR.rules
+%{_udevrulesdir}/80-iguanaIR.rules
 %{_bindir}/igclient
 %{_bindir}/igdaemon
 %{_bindir}/iguanaIR-reflasher
@@ -83,5 +84,8 @@ This package contains libraries and header files for developing applications tha
 %{_libdir}/libiguanaIR.so
 
 %changelog
+* Sat Dec 26 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 20160823git-2mamba
+- rebuilt with python3 3.7
+
 * Tue Aug 23 2016 Silvan Calarco <silvan.calarco@mambasoft.it> 20160823git-1mamba
 - package created using the webbuild interface