diff --git a/pkgs/development/libraries/intel-gmmlib/default.nix b/pkgs/development/libraries/intel-gmmlib/default.nix
index f050a9c7b3b..28138f103b9 100644
--- a/pkgs/development/libraries/intel-gmmlib/default.nix
+++ b/pkgs/development/libraries/intel-gmmlib/default.nix
@@ -4,13 +4,13 @@
 
 stdenv.mkDerivation rec {
   pname = "intel-gmmlib";
-  version = "20.3.3";
+  version = "20.4.1";
 
   src = fetchFromGitHub {
     owner  = "intel";
     repo   = "gmmlib";
     rev    = "${pname}-${version}";
-    sha256 = "1diq1gqpfv5bawvag6bzwnd3ilhacwmwx3bl67abjvbb0m3jw4lk";
+    sha256 = "0qb0wpinfv8lg1pq1pxkl6v0kd8ax86m8zxzm6zjx91alsch1mi6";
   };
 
   nativeBuildInputs = [ cmake ];
@@ -19,6 +19,12 @@ stdenv.mkDerivation rec {
     homepage = "https://github.com/intel/gmmlib";
     license = licenses.mit;
     description = "Intel Graphics Memory Management Library";
+    longDescription = ''
+      The Intel(R) Graphics Memory Management Library provides device specific
+      and buffer management for the Intel(R) Graphics Compute Runtime for
+      OpenCL(TM) and the Intel(R) Media Driver for VAAPI.
+    '';
     platforms = [ "x86_64-linux" ];
+    maintainers = with maintainers; [ primeos ];
   };
 }