diff --git a/liquidsoap.spec b/liquidsoap.spec
index 8b1b6cd..c12585f 100644
--- a/liquidsoap.spec
+++ b/liquidsoap.spec
@@ -1,6 +1,6 @@
 Name:          liquidsoap
 Version:       2.0.3
-Release:       2mamba
+Release:       3mamba
 Summary:       Audio toolkit for streaming, aiming at complex Internet radio systems
 Group:         Applications/Multimedia
 Vendor:        openmamba
@@ -147,6 +147,7 @@ Requires: ocaml-sedlex
 Requires: ocaml-shine
 #Requires: ocaml-soundtouch
 Requires: ocaml-speex
+Requires: ocaml-srt
 Requires: ocaml-taglib
 Requires: ocaml-theora
 Requires: ocaml-vorbis
@@ -341,6 +342,9 @@ fi
 #%doc doc/html
 
 %changelog
+* Mon Mar 07 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 2.0.3-3mamba
+- added requirement for ocaml-srt
+
 * Sun Feb 13 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 2.0.3-2mamba
 - added support for ocaml-yojson and ocaml-fdkaac