diff --git a/pkgs/development/libraries/belle-sip/default.nix b/pkgs/development/libraries/belle-sip/default.nix
index 22817feadeda..13ba11de1c6d 100644
--- a/pkgs/development/libraries/belle-sip/default.nix
+++ b/pkgs/development/libraries/belle-sip/default.nix
@@ -11,15 +11,15 @@
 
 stdenv.mkDerivation rec {
   pname = "belle-sip";
-  version = "linphone-4.4.1";
+  version = "5.1.55";
 
   src = fetchFromGitLab {
     domain = "gitlab.linphone.org";
     owner = "public";
     group = "BC";
     repo = pname;
-    rev = "44d5977570280763ee1fecdb920736715bad58a3";
-    sha256 = "sha256-w++v3YlDZfpCHAbUQA/RftjRNGkz9J/zYoxZqRgtvnA=";
+    rev = version;
+    sha256 = "sha256-wMf570/RP2Q4yluedECs+AKoH92PQQ8yVY+eBGGSAP4=";
   };
 
   nativeBuildInputs = [ cmake ];