diff --git a/default.nix b/default.nix
index cd07161..6cc552e 100644
--- a/default.nix
+++ b/default.nix
@@ -21,4 +21,6 @@ rec {
   bima = pkgs.callPackage ./pkgs/bima {};
   vhive = pkgs.callPackage ./pkgs/vhive { };
   firecracker-containerd = pkgs.callPackage ./pkgs/firecracker-containerd { };
+  umap = pkgs.callPackage ./pkgs/umap { };
+  umap-apps = pkgs.callPackage ./pkgs/umap-apps { inherit umap; };
 }
diff --git a/pkgs/umap-apps/cstdint.patch b/pkgs/umap-apps/cstdint.patch
new file mode 100644
index 0000000..17246de
--- /dev/null
+++ b/pkgs/umap-apps/cstdint.patch
@@ -0,0 +1,43 @@
+diff --git a/src/bfs/bfs_kernel.hpp b/src/bfs/bfs_kernel.hpp
+index 0fdd7ae..4e733ff 100644
+--- a/src/bfs/bfs_kernel.hpp
++++ b/src/bfs/bfs_kernel.hpp
+@@ -17,6 +17,7 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+ #include <iostream>
+ #include <limits>
++#include <cstdint>
+
+ #ifdef _OPENMP
+ #include <omp.h>
+diff --git a/src/bfs/compute_degree_distribution.cpp b/src/bfs/compute_degree_distribution.cpp
+index 27c70a2..cf2d53a 100644
+--- a/src/bfs/compute_degree_distribution.cpp
++++ b/src/bfs/compute_degree_distribution.cpp
+@@ -19,6 +19,7 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ #include <unordered_map>
+ #include <vector>
+ #include <algorithm>
++#include <cstdint>
+
+ /// This is a utility program to compute a degree distribution
+ /// This program treat the input files as directed graph
+@@ -90,4 +91,4 @@ int main(int argc, char **argv) {
+   std::cout << "Finished degree distribution computation" << std::endl;
+
+   return 0;
+-}
+\ No newline at end of file
++}
+diff --git a/src/bfs/ingest_edge_list.cpp b/src/bfs/ingest_edge_list.cpp
+index a975d5b..461a05b 100644
+--- a/src/bfs/ingest_edge_list.cpp
++++ b/src/bfs/ingest_edge_list.cpp
+@@ -22,6 +22,7 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ #include <algorithm>
+ #include <tuple>
+ #include <cstring>
++#include <cstdint>
+
+ #include "../utility/bitmap.hpp"
+ #include "../utility/mmap.hpp"
diff --git a/pkgs/umap-apps/default.nix b/pkgs/umap-apps/default.nix
new file mode 100644
index 0000000..1d2cfab
--- /dev/null
+++ b/pkgs/umap-apps/default.nix
@@ -0,0 +1,23 @@
+{ pkgs, stdenv, lib, fetchFromGitHub, umap }:
+
+stdenv.mkDerivation rec {
+  pname = "umap-apps";
+  version = "v" + "1.1";
+  src = fetchFromGitHub {
+    owner = "LLNL";
+    repo = "umap-apps";
+    rev = version;
+    hash = "sha256-n6UOqzfuI8DVIA7B6uYpPCpn78f+5w74pcsSYmGwHm8=";
+  };
+  cmakeFlags = [ "-DUMAP_INSTALL_PATH=${umap}" ];
+
+  nativeBuildInputs = [ umap pkgs.cmake pkgs.gnumake ];
+  patches = [ ./cstdint.patch ];
+
+  meta = with lib; {
+    homepage = https://github.com/LLNL/umap;
+    description = "User-space Page Management";
+    license = licenses.lgpl2;
+    broken = false;
+  };
+}
diff --git a/pkgs/umap/cstdint.patch b/pkgs/umap/cstdint.patch
new file mode 100644
index 0000000..0e0f9a7
--- /dev/null
+++ b/pkgs/umap/cstdint.patch
@@ -0,0 +1,36 @@
+diff --git a/examples/bfs/bfs_kernel.hpp b/examples/bfs/bfs_kernel.hpp
+index 8c8613b..599ab8a 100644
+--- a/examples/bfs/bfs_kernel.hpp
++++ b/examples/bfs/bfs_kernel.hpp
+@@ -24,6 +24,7 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+ #include "utility/bitmap.hpp"
+ #include "utility/open_mp.hpp"
++#include <cstdint>
+
+ namespace bfs {
+
+diff --git a/examples/bfs/rmat_graph_generator/ingest_edge_list.cpp b/examples/bfs/rmat_graph_generator/ingest_edge_list.cpp
+index 09303f6..3ba259d 100644
+--- a/examples/bfs/rmat_graph_generator/ingest_edge_list.cpp
++++ b/examples/bfs/rmat_graph_generator/ingest_edge_list.cpp
+@@ -22,6 +22,7 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ #include <algorithm>
+ #include <tuple>
+ #include <cstring>
++#include <cstdint>
+
+ #include "utility/bitmap.hpp"
+ #include "utility/mmap.hpp"
+diff --git a/examples/bfs/utility/bitmap.hpp b/examples/bfs/utility/bitmap.hpp
+index 1881b85..c78c293 100644
+--- a/examples/bfs/utility/bitmap.hpp
++++ b/examples/bfs/utility/bitmap.hpp
+@@ -16,6 +16,7 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ #define LIB_UTILITY_BITMAP_HPP
+
+ #include <iostream>
++#include <cstdint>
+
+ namespace utility
+ {
diff --git a/pkgs/umap/default.nix b/pkgs/umap/default.nix
new file mode 100644
index 0000000..0366829
--- /dev/null
+++ b/pkgs/umap/default.nix
@@ -0,0 +1,22 @@
+{ pkgs, stdenv, lib, fetchFromGitHub }:
+
+stdenv.mkDerivation rec {
+  pname = "umap";
+  version = "v" + "2.1.1";
+  src = fetchFromGitHub {
+    owner = "LLNL";
+    repo = "umap";
+    rev = version;
+    hash = "sha256-nAzQ7fK9BsfgOSWuoQLeqomy6LO+ERP0fjj12iQXp5I=";
+  };
+
+  nativeBuildInputs = [ pkgs.cmake pkgs.gnumake ];
+  patches = [ ./cstdint.patch ];
+
+  meta = with lib; {
+    homepage = https://github.com/LLNL/umap;
+    description = "User-space Page Management";
+    license = licenses.lgpl2;
+    broken = false;
+  };
+}