diff --git a/pkgs/development/libraries/catch/default.nix b/pkgs/development/libraries/catch/default.nix
index 66ced59c26d..6c20f4d6c91 100644
--- a/pkgs/development/libraries/catch/default.nix
+++ b/pkgs/development/libraries/catch/default.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   name = "catch-${version}";
-  version = "1.9.6";
+  version = "1.11.0";
 
   src = fetchFromGitHub {
-    owner = "philsquared";
+    owner = "catchorg";
     repo = "Catch";
     rev = "v${version}";
-    sha256 = "0nqnyw6haa2771748ycag4hhjb8ni32cv4f7w3h0pji212542xan";
+    sha256 = "0v9yw7ydvhydp78hh7cmaif4h73k5qxqpm1g7xn8i882i3s84s2s";
   };
 
   nativeBuildInputs = [ cmake ];
diff --git a/pkgs/development/libraries/libjson-rpc-cpp/default.nix b/pkgs/development/libraries/libjson-rpc-cpp/default.nix
index 7c0bc358ea9..87cae224685 100644
--- a/pkgs/development/libraries/libjson-rpc-cpp/default.nix
+++ b/pkgs/development/libraries/libjson-rpc-cpp/default.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation rec {
              -DCMAKE_BUILD_TYPE=Release
   '';
 
-  installPhase = '' 
+  installPhase = ''
     mkdir -p $out
 
     function fixRunPath {
@@ -56,6 +56,8 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ pkgconfig ];
   buildInputs = [ cmake jsoncpp argtable curl libmicrohttpd doxygen catch ];
 
+  enableParallelBuilding = true;
+
   meta = with stdenv.lib; {
     description = "C++ framework for json-rpc (json remote procedure call)";
     homepage = https://github.com/cinemast/libjson-rpc-cpp;