diff --git a/pkgs/development/libraries/bctoolbox/default.nix b/pkgs/development/libraries/bctoolbox/default.nix
index dc585217cea7..5a9bbd5a49db 100644
--- a/pkgs/development/libraries/bctoolbox/default.nix
+++ b/pkgs/development/libraries/bctoolbox/default.nix
@@ -7,7 +7,7 @@
 
 stdenv.mkDerivation rec {
   pname = "bctoolbox";
-  version = "4.4.34";
+  version = "4.5.1";
 
   nativeBuildInputs = [ cmake bcunit ];
   buildInputs = [ mbedtls ];
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
     group = "BC";
     repo = pname;
     rev = version;
-    sha256 = "0bfswwvvdshaahg4jd2j10f0sci8809s4khajd0m6b059zwc7y25";
+    sha256 = "1mm3v01jz2mp8vajsl45s23gw90zafbgg3br5n5yz03aan08f395";
   };
 
   # Do not build static libraries
diff --git a/pkgs/development/libraries/belcard/default.nix b/pkgs/development/libraries/belcard/default.nix
index 5ce7ad477bfa..36af06dfc55a 100644
--- a/pkgs/development/libraries/belcard/default.nix
+++ b/pkgs/development/libraries/belcard/default.nix
@@ -7,7 +7,7 @@
 
 stdenv.mkDerivation rec {
   pname = "belcard";
-  version = "4.4.34";
+  version = "4.5.1";
 
   src = fetchFromGitLab {
     domain = "gitlab.linphone.org";
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
     group = "BC";
     repo = pname;
     rev = version;
-    sha256 = "16x2xp8d0a115132zhy1kpxkyj86ia7vrsnpjdg78fnbvmvysc8m";
+    sha256 = "14hkgwr2a9zw44v1s8xscqxa2mwin06jsxpwb3hflh9mp16ymfzv";
   };
 
   buildInputs = [ bctoolbox belr ];
diff --git a/pkgs/development/libraries/belle-sip/default.nix b/pkgs/development/libraries/belle-sip/default.nix
index 8f0a116f1aa3..0f8a61bed244 100644
--- a/pkgs/development/libraries/belle-sip/default.nix
+++ b/pkgs/development/libraries/belle-sip/default.nix
@@ -11,7 +11,7 @@
 
 stdenv.mkDerivation rec {
   pname = "belle-sip";
-  version = "4.4.34";
+  version = "4.5.1";
 
   src = fetchFromGitLab {
     domain = "gitlab.linphone.org";
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
     group = "BC";
     repo = pname;
     rev = version;
-    sha256 = "1kknnlczq7dpqaj1dwxvy092dzrqjy11ndkv90rqwmdryigkjk6z";
+    sha256 = "0d1wf0jv9lb0s6r49i9gz5nrx8jzpkx558hywll7idma9d0mr61p";
   };
 
   nativeBuildInputs = [ antlr3_4 cmake ];
diff --git a/pkgs/development/libraries/belr/default.nix b/pkgs/development/libraries/belr/default.nix
index acd2393f75ed..252ac3e80edc 100644
--- a/pkgs/development/libraries/belr/default.nix
+++ b/pkgs/development/libraries/belr/default.nix
@@ -6,7 +6,7 @@
 
 stdenv.mkDerivation rec {
   pname = "belr";
-  version = "4.4.34";
+  version = "4.5.1";
 
   src = fetchFromGitLab {
     domain = "gitlab.linphone.org";
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
     group = "BC";
     repo = pname;
     rev = version;
-    sha256 = "0w2canwwm0qb99whnangvaybvjzq8xg6vksqxykgr8fbx7clw03h";
+    sha256 = "0m0s7g8d25nbnafbl76w9v3x7q4jhsypxmz1gg80pj7j34xc2dsd";
   };
 
   buildInputs = [ bctoolbox ];
diff --git a/pkgs/development/libraries/bzrtp/default.nix b/pkgs/development/libraries/bzrtp/default.nix
index f29295bb130f..b698cf7b404d 100644
--- a/pkgs/development/libraries/bzrtp/default.nix
+++ b/pkgs/development/libraries/bzrtp/default.nix
@@ -7,7 +7,7 @@
 
 stdenv.mkDerivation rec {
   pname = "bzrtp";
-  version = "4.4.34";
+  version = "4.5.1";
 
   src = fetchFromGitLab {
     domain = "gitlab.linphone.org";
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
     group = "BC";
     repo = pname;
     rev = version;
-    sha256 = "1yjmsbqmymzl4r7sba6w4a2yld8m6hzafr6jf7sj0syhwpnc3zv6";
+    sha256 = "1a500ncgznwha0j3c27ak3p4jh5jm6fnnb531k7c0a4i91745agj";
   };
 
   buildInputs = [ bctoolbox sqlite ];
diff --git a/pkgs/development/libraries/liblinphone/default.nix b/pkgs/development/libraries/liblinphone/default.nix
index 2822b45f8719..db9db1ba3a69 100644
--- a/pkgs/development/libraries/liblinphone/default.nix
+++ b/pkgs/development/libraries/liblinphone/default.nix
@@ -10,10 +10,8 @@
 , cyrus_sasl
 , doxygen
 , fetchFromGitLab
-, fetchurl
 , ffmpeg_3
 , gdk-pixbuf
-, git
 , glib
 , graphviz
 , gtk2
@@ -30,12 +28,11 @@
 , makeWrapper
 , mbedtls
 , mediastreamer
-, mediastreamer-openh264
 , openldap
 , ortp
 , pango
 , pkg-config
-, python
+, python3
 , readline
 , soci
 , speex
@@ -49,7 +46,7 @@
 
 stdenv.mkDerivation rec {
   pname = "liblinphone";
-  version = "4.4.35";
+  version = "4.5.1";
 
   src = fetchFromGitLab {
     domain = "gitlab.linphone.org";
@@ -57,7 +54,7 @@ stdenv.mkDerivation rec {
     group = "BC";
     repo = pname;
     rev = version;
-    sha256 = "1sysr8wnf1kvq87h2ymr5qk9qcjapayvlmcmzcx3zxk8vhqp83d8";
+    sha256 = "05ybbxq2yqzy3f3vzq8c3szs3qr0zl64la53icpqnmfakwnps5gs";
   };
 
   # Do not build static libraries
@@ -67,7 +64,7 @@ stdenv.mkDerivation rec {
   # defined when liblinphone and linphone-desktop weren't separated yet, so some
   # of them might not be needed for liblinphone alone.
   buildInputs = [
-    (python.withPackages (ps: [ ps.pystache ps.six ]))
+    (python3.withPackages (ps: [ ps.pystache ps.six ]))
     bcg729
     bctoolbox
     belcard
diff --git a/pkgs/development/libraries/lime/default.nix b/pkgs/development/libraries/lime/default.nix
index b9ca94056180..741f05bea6f9 100644
--- a/pkgs/development/libraries/lime/default.nix
+++ b/pkgs/development/libraries/lime/default.nix
@@ -10,7 +10,7 @@
 
 stdenv.mkDerivation rec {
   pname = "lime";
-  version = "4.4.34";
+  version = "4.5.1";
 
   src = fetchFromGitLab {
     domain = "gitlab.linphone.org";
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
     group = "BC";
     repo = pname;
     rev = version;
-    sha256 = "14jg1zisjbzflw3scfqdbwy48wq3cp93l867vigb8l40lkc6n26z";
+    sha256 = "1fsldk7gxagxkbkzksz6dz8a8dmix1lxfy8nvvp0m355pzgqj6lb";
   };
 
   buildInputs = [ bctoolbox soci belle-sip sqlite ];
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
   meta = with lib; {
     description = "End-to-end encryption library for instant messaging";
     homepage = "http://www.linphone.org/technical-corner/lime";
-    license = licenses.gpl3;
+    license = licenses.gpl3Only;
     platforms = platforms.all;
     maintainers = with maintainers; [ jluttine ];
   };
diff --git a/pkgs/development/libraries/mediastreamer/default.nix b/pkgs/development/libraries/mediastreamer/default.nix
index ad770046d338..4a8bc710c8e5 100644
--- a/pkgs/development/libraries/mediastreamer/default.nix
+++ b/pkgs/development/libraries/mediastreamer/default.nix
@@ -4,11 +4,11 @@
 , cmake
 , doxygen
 , fetchFromGitLab
-, fetchpatch
 , ffmpeg_3
 , glew
 , gsm
 , intltool
+, lib
 , libGL
 , libGLU
 , libX11
@@ -24,16 +24,16 @@
 , libvpx
 , ortp
 , pkg-config
-, python
+, python3
 , SDL
 , speex
 , srtp
-, lib, stdenv
+, stdenv
 }:
 
 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 = [
@@ -102,7 +102,7 @@ stdenv.mkDerivation rec {
   meta = with lib; {
     description = "A powerful and lightweight streaming engine specialized for voice/video telephony applications";
     homepage = "http://www.linphone.org/technical-corner/mediastreamer2";
-    license = licenses.gpl3;
+    license = licenses.gpl3Only;
     platforms = platforms.linux;
     maintainers = with maintainers; [ jluttine ];
   };
diff --git a/pkgs/development/libraries/ortp/default.nix b/pkgs/development/libraries/ortp/default.nix
index e760868524fa..af924ad80d26 100644
--- a/pkgs/development/libraries/ortp/default.nix
+++ b/pkgs/development/libraries/ortp/default.nix
@@ -6,7 +6,7 @@
 
 stdenv.mkDerivation rec {
   pname = "ortp";
-  version = "4.4.34";
+  version = "4.5.1";
 
   src = fetchFromGitLab {
     domain = "gitlab.linphone.org";
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
     group = "BC";
     repo = pname;
     rev = version;
-    sha256 = "1r1kvjzyfvkf66in4p51wi87balzg3sw3aq6r4xr609mz86spi5m";
+    sha256 = "1lc1j7wvkyp5lhcflq3h5y7n8aiwgwj84ffm81ggbsmavamgwkk7";
   };
 
   # Do not build static libraries