diff --git a/pkgs/development/libraries/science/math/scalapack/default.nix b/pkgs/development/libraries/science/math/scalapack/default.nix
index 14277c8c6318..bff0d9a85fa2 100644
--- a/pkgs/development/libraries/science/math/scalapack/default.nix
+++ b/pkgs/development/libraries/science/math/scalapack/default.nix
@@ -1,20 +1,19 @@
-{ stdenv, fetchurl, cmake, openssh
+{ stdenv, fetchFromGitHub, cmake, openssh
 , gfortran, mpi, openblasCompat
 } :
 
 
 stdenv.mkDerivation rec {
   pname = "scalapack";
-  version = "2.0.2";
+  version = "2.1";
 
-  src = fetchurl {
-    url = "http://www.netlib.org/scalapack/scalapack-${version}.tgz";
-    sha256 = "0p1r61ss1fq0bs8ynnx7xq4wwsdvs32ljvwjnx6yxr8gd6pawx0c";
+  src = fetchFromGitHub {
+    owner = "Reference-ScaLAPACK";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "042q9kc383h7y0had9a37702z4s0szavss063ljvfdsbjy07gzb1";
   };
 
-  # patch to rename outdated MPI functions
-  patches = [ ./openmpi4.patch ];
-
   nativeBuildInputs = [ cmake openssh ];
   buildInputs = [ mpi gfortran openblasCompat ];
 
diff --git a/pkgs/development/libraries/science/math/scalapack/openmpi4.patch b/pkgs/development/libraries/science/math/scalapack/openmpi4.patch
deleted file mode 100644
index 5d0afb58c027..000000000000
--- a/pkgs/development/libraries/science/math/scalapack/openmpi4.patch
+++ /dev/null
@@ -1,143 +0,0 @@
-diff --git a/BLACS/SRC/blacs_get_.c b/BLACS/SRC/blacs_get_.c
-index e979767..d4b04cf 100644
---- a/BLACS/SRC/blacs_get_.c
-+++ b/BLACS/SRC/blacs_get_.c
-@@ -23,7 +23,7 @@ F_VOID_FUNC blacs_get_(int *ConTxt, int *what, int *val)
-    case SGET_MSGIDS:
-       if (BI_COMM_WORLD == NULL) Cblacs_pinfo(val, &val[1]);
-       iptr = &val[1];
--      ierr=MPI_Attr_get(MPI_COMM_WORLD, MPI_TAG_UB, (BVOID **) &iptr,val);
-+      ierr=MPI_Comm_get_attr(MPI_COMM_WORLD, MPI_TAG_UB, (BVOID **) &iptr,val);
-       val[0] = 0;
-       val[1] = *iptr;
-       break;
-diff --git a/BLACS/SRC/cgamn2d_.c b/BLACS/SRC/cgamn2d_.c
-index 2db6ccb..6958f32 100644
---- a/BLACS/SRC/cgamn2d_.c
-+++ b/BLACS/SRC/cgamn2d_.c
-@@ -221,7 +221,7 @@ F_VOID_FUNC cgamn2d_(int *ConTxt, F_CHAR scope, F_CHAR top, int *m, int *n,
-       {
- #endif
-       i = 2;
--      ierr=MPI_Type_struct(i, len, disp, dtypes, &MyType);
-+      ierr=MPI_Type_create_struct(i, len, disp, dtypes, &MyType);
-       ierr=MPI_Type_commit(&MyType);
-       bp->N = bp2->N = 1;
-       bp->dtype = bp2->dtype = MyType;
-diff --git a/BLACS/SRC/cgamx2d_.c b/BLACS/SRC/cgamx2d_.c
-index 707c0b6..f802d01 100644
---- a/BLACS/SRC/cgamx2d_.c
-+++ b/BLACS/SRC/cgamx2d_.c
-@@ -221,7 +221,7 @@ F_VOID_FUNC cgamx2d_(int *ConTxt, F_CHAR scope, F_CHAR top, int *m, int *n,
-       {
- #endif
-       i = 2;
--      ierr=MPI_Type_struct(i, len, disp, dtypes, &MyType);
-+      ierr=MPI_Type_create_struct(i, len, disp, dtypes, &MyType);
-       ierr=MPI_Type_commit(&MyType);
-       bp->N = bp2->N = 1;
-       bp->dtype = bp2->dtype = MyType;
-diff --git a/BLACS/SRC/dgamn2d_.c b/BLACS/SRC/dgamn2d_.c
-index dff23b4..a2627ac 100644
---- a/BLACS/SRC/dgamn2d_.c
-+++ b/BLACS/SRC/dgamn2d_.c
-@@ -221,7 +221,7 @@ F_VOID_FUNC dgamn2d_(int *ConTxt, F_CHAR scope, F_CHAR top, int *m, int *n,
-       {
- #endif
-       i = 2;
--      ierr=MPI_Type_struct(i, len, disp, dtypes, &MyType);
-+      ierr=MPI_Type_create_struct(i, len, disp, dtypes, &MyType);
-       ierr=MPI_Type_commit(&MyType);
-       bp->N = bp2->N = 1;
-       bp->dtype = bp2->dtype = MyType;
-diff --git a/BLACS/SRC/dgamx2d_.c b/BLACS/SRC/dgamx2d_.c
-index a51f731..2a644d0 100644
---- a/BLACS/SRC/dgamx2d_.c
-+++ b/BLACS/SRC/dgamx2d_.c
-@@ -221,7 +221,7 @@ F_VOID_FUNC dgamx2d_(int *ConTxt, F_CHAR scope, F_CHAR top, int *m, int *n,
-       {
- #endif
-       i = 2;
--      ierr=MPI_Type_struct(i, len, disp, dtypes, &MyType);
-+      ierr=MPI_Type_create_struct(i, len, disp, dtypes, &MyType);
-       ierr=MPI_Type_commit(&MyType);
-       bp->N = bp2->N = 1;
-       bp->dtype = bp2->dtype = MyType;
-diff --git a/BLACS/SRC/igamn2d_.c b/BLACS/SRC/igamn2d_.c
-index 16bc003..f6a7859 100644
---- a/BLACS/SRC/igamn2d_.c
-+++ b/BLACS/SRC/igamn2d_.c
-@@ -218,7 +218,7 @@ F_VOID_FUNC igamn2d_(int *ConTxt, F_CHAR scope, F_CHAR top, int *m, int *n,
-       {
- #endif
-       i = 2;
--      ierr=MPI_Type_struct(i, len, disp, dtypes, &MyType);
-+      ierr=MPI_Type_create_struct(i, len, disp, dtypes, &MyType);
-       ierr=MPI_Type_commit(&MyType);
-       bp->N = bp2->N = 1;
-       bp->dtype = bp2->dtype = MyType;
-diff --git a/BLACS/SRC/igamx2d_.c b/BLACS/SRC/igamx2d_.c
-index 8165cbe..a7cfcc6 100644
---- a/BLACS/SRC/igamx2d_.c
-+++ b/BLACS/SRC/igamx2d_.c
-@@ -218,7 +218,7 @@ F_VOID_FUNC igamx2d_(int *ConTxt, F_CHAR scope, F_CHAR top, int *m, int *n,
-       {
- #endif
-       i = 2;
--      ierr=MPI_Type_struct(i, len, disp, dtypes, &MyType);
-+      ierr=MPI_Type_create_struct(i, len, disp, dtypes, &MyType);
-       ierr=MPI_Type_commit(&MyType);
-       bp->N = bp2->N = 1;
-       bp->dtype = bp2->dtype = MyType;
-diff --git a/BLACS/SRC/sgamn2d_.c b/BLACS/SRC/sgamn2d_.c
-index d6c95e5..569c797 100644
---- a/BLACS/SRC/sgamn2d_.c
-+++ b/BLACS/SRC/sgamn2d_.c
-@@ -221,7 +221,7 @@ F_VOID_FUNC sgamn2d_(int *ConTxt, F_CHAR scope, F_CHAR top, int *m, int *n,
-       {
- #endif
-       i = 2;
--      ierr=MPI_Type_struct(i, len, disp, dtypes, &MyType);
-+      ierr=MPI_Type_create_struct(i, len, disp, dtypes, &MyType);
-       ierr=MPI_Type_commit(&MyType);
-       bp->N = bp2->N = 1;
-       bp->dtype = bp2->dtype = MyType;
-diff --git a/BLACS/SRC/sgamx2d_.c b/BLACS/SRC/sgamx2d_.c
-index 4b0af6f..8897ece 100644
---- a/BLACS/SRC/sgamx2d_.c
-+++ b/BLACS/SRC/sgamx2d_.c
-@@ -221,7 +221,7 @@ F_VOID_FUNC sgamx2d_(int *ConTxt, F_CHAR scope, F_CHAR top, int *m, int *n,
-       {
- #endif
-       i = 2;
--      ierr=MPI_Type_struct(i, len, disp, dtypes, &MyType);
-+      ierr=MPI_Type_create_struct(i, len, disp, dtypes, &MyType);
-       ierr=MPI_Type_commit(&MyType);
-       bp->N = bp2->N = 1;
-       bp->dtype = bp2->dtype = MyType;
-diff --git a/BLACS/SRC/zgamn2d_.c b/BLACS/SRC/zgamn2d_.c
-index 9de2b23..37897df 100644
---- a/BLACS/SRC/zgamn2d_.c
-+++ b/BLACS/SRC/zgamn2d_.c
-@@ -221,7 +221,7 @@ F_VOID_FUNC zgamn2d_(int *ConTxt, F_CHAR scope, F_CHAR top, int *m, int *n,
-       {
- #endif
-       i = 2;
--      ierr=MPI_Type_struct(i, len, disp, dtypes, &MyType);
-+      ierr=MPI_Type_create_struct(i, len, disp, dtypes, &MyType);
-       ierr=MPI_Type_commit(&MyType);
-       bp->N = bp2->N = 1;
-       bp->dtype = bp2->dtype = MyType;
-diff --git a/BLACS/SRC/zgamx2d_.c b/BLACS/SRC/zgamx2d_.c
-index 414c381..0e9d474 100644
---- a/BLACS/SRC/zgamx2d_.c
-+++ b/BLACS/SRC/zgamx2d_.c
-@@ -221,7 +221,7 @@ F_VOID_FUNC zgamx2d_(int *ConTxt, F_CHAR scope, F_CHAR top, int *m, int *n,
-       {
- #endif
-       i = 2;
--      ierr=MPI_Type_struct(i, len, disp, dtypes, &MyType);
-+      ierr=MPI_Type_create_struct(i, len, disp, dtypes, &MyType);
-       ierr=MPI_Type_commit(&MyType);
-       bp->N = bp2->N = 1;
-       bp->dtype = bp2->dtype = MyType;