diff --git a/pkgs/development/libraries/ucommon/default.nix b/pkgs/development/libraries/ucommon/default.nix
index 64afde3c53b..315566851fb 100644
--- a/pkgs/development/libraries/ucommon/default.nix
+++ b/pkgs/development/libraries/ucommon/default.nix
@@ -10,11 +10,11 @@ assert xor (openssl != null) (gnutls != null);
 assert !(xor (openssl != null) (zlib != null));
 
 stdenv.mkDerivation rec {
-  name = "ucommon-6.3.1";
+  name = "ucommon-7.0.0";
 
   src = fetchurl {
     url = "mirror://gnu/commoncpp/${name}.tar.gz";
-    sha256 = "1marbwbqnllhm9nh22lvyfjy802pgy1wx7j7kkpkasbm9r0sb6mm";
+    sha256 = "6ac9f76c2af010f97e916e4bae1cece341dc64ca28e3881ff4ddc3bc334060d7";
   };
 
   buildInputs = [ pkgconfig ];
diff --git a/pkgs/servers/sip/sipwitch/default.nix b/pkgs/servers/sip/sipwitch/default.nix
index 8eecfa1e276..3395be9b9c1 100644
--- a/pkgs/servers/sip/sipwitch/default.nix
+++ b/pkgs/servers/sip/sipwitch/default.nix
@@ -1,11 +1,11 @@
 { fetchurl, stdenv, pkgconfig, ucommon, libosip, libexosip, gnutls, zlib }:
 
 stdenv.mkDerivation rec {
-  name = "sipwitch-1.9.8";
+  name = "sipwitch-1.9.15";
 
   src = fetchurl {
     url = "mirror://gnu/sipwitch/${name}.tar.gz";
-    sha256 = "0117c5iid1vrwl7sl3pys2jlinpmx2vfp8wcdwk93m7cc6k9793b";
+    sha256 = "2a7aa86a653f6810b3cd9cce6c37b3f70e937e7d14b09fd5c2a70d70588a9482";
   };
 
   buildInputs = [ pkgconfig ucommon libosip libexosip gnutls zlib ];