diff --git a/gnu/packages/telephony.scm b/gnu/packages/telephony.scm
index 45701bf445080b988a57b905a2a6de84ee589ccf..601bfd62a29da4463a4bea04a69618d4bff4c843 100644
--- a/gnu/packages/telephony.scm
+++ b/gnu/packages/telephony.scm
@@ -120,12 +120,13 @@ (define-public ccrtp
 (define-public osip
   (package
    (name "osip")
-   (version "4.1.0")
+   (version "5.0.0")
    (source (origin
             (method url-fetch)
             (uri (string-append "mirror://gnu/osip/libosip2-" version ".tar.gz"))
-            (sha256 (base32
-                     "014503kqv7z63az6lgxr5fbajlrqylm5c4kgbf8p3a0n6cva0slr"))))
+            (sha256
+             (base32
+              "00yznbrm9q04wgd4b831km8iwlvwvsnwv87igf79g5vj9yakr88q"))))
    (build-system gnu-build-system)
 
    (synopsis "Library implementing SIP (RFC-3261)")