diff --git a/pkgs/development/libraries/mediastreamer/default.nix b/pkgs/development/libraries/mediastreamer/default.nix
index ad770046d338..55055030b1ec 100644
--- a/pkgs/development/libraries/mediastreamer/default.nix
+++ b/pkgs/development/libraries/mediastreamer/default.nix
@@ -24,7 +24,7 @@
 , libvpx
 , ortp
 , pkg-config
-, python
+, python3
 , SDL
 , speex
 , srtp
@@ -33,7 +33,7 @@
 
 stdenv.mkDerivation rec {
   pname = "mediastreamer2";
-  version = "4.4.35";
+  version = "4.5.1";
 
   src = fetchFromGitLab {
     domain = "gitlab.linphone.org";
@@ -41,7 +41,7 @@ stdenv.mkDerivation rec {
     group = "BC";
     repo = pname;
     rev = version;
-    sha256 = "18qmg678m087k7qsaxwfcv2p875z2kpy91pqryiv955km40drl0g";
+    sha256 = "0aqma9834lzy1593qb9qwmzvzn50y6fzhmmg493jznf8977b0gsw";
   };
 
   patches = [
@@ -58,7 +58,7 @@ stdenv.mkDerivation rec {
     doxygen
     intltool
     pkg-config
-    python
+    python3
   ];
 
   propagatedBuildInputs = [