diff --git a/pkgs/development/libraries/nlohmann_json/default.nix b/pkgs/development/libraries/nlohmann_json/default.nix
index 15ddbdaedef4..a5a808c1f615 100644
--- a/pkgs/development/libraries/nlohmann_json/default.nix
+++ b/pkgs/development/libraries/nlohmann_json/default.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   name = "nlohmann_json-${version}";
-  version = "2.0.7";
+  version = "2.1.0";
 
   src = fetchFromGitHub {
     owner = "nlohmann";
     repo = "json";
     rev = "v${version}";
-    sha256 = "03jklvlcsms09p79qz9piqrdy2vhn4rkwidwfgq6cpxm6anqyqjh";
+    sha256 = "116309lx77m31x4krln0g7mra900g0knk9lbkxbpxnmamkagjyl9";
   };
 
   nativeBuildInputs = [ cmake ];
@@ -16,6 +16,8 @@ stdenv.mkDerivation rec {
   doCheck = true;
   checkTarget = "test";
 
+  enableParallelBuilding = true;
+
   crossAttrs = {
     cmakeFlags = "-DBuildTests=OFF";
     doCheck = false;