diff --git a/rng-tools.spec b/rng-tools.spec
index 701be5d..88c5198 100644
--- a/rng-tools.spec
+++ b/rng-tools.spec
@@ -1,6 +1,6 @@
 Name:          rng-tools
 Version:       6.16
-Release:       3mamba
+Release:       4mamba
 Summary:       A random number generator daemon
 Group:         System/Kernel and Hardware
 Vendor:        openmamba
@@ -23,6 +23,7 @@ BuildRequires: librtlsdr-devel
 BuildRequires: libusb-devel
 BuildRequires: libxml2-devel
 ## AUTOBUILDREQ-END
+BuildRequires: librtlsdr-devel >= 2.0.1-1mamba
 Requires:      libopensc
 
 %description
@@ -73,6 +74,9 @@ install -D -m0644 %{SOURCE2} %{buildroot}%{_sysconfdir}/sysconfig/rngd
 %doc AUTHORS COPYING
 
 %changelog
+* Sun Mar 24 2024 Automatic Build System <autodist@mambasoft.it> 6.16-4mamba
+- rebuilt by autoport with build requirements: librtlsdr-devel>=2.0.1-1mamba
+
 * Thu Apr 27 2023 Silvan Calarco <silvan.calarco@mambasoft.it> 6.16-3mamba
 - fix applying updated rngd.service