diff --git a/pkgs/development/python-modules/simplefix/default.nix b/pkgs/development/python-modules/simplefix/default.nix
new file mode 100644
index 00000000000..8b84d6a248e
--- /dev/null
+++ b/pkgs/development/python-modules/simplefix/default.nix
@@ -0,0 +1,25 @@
+{ lib, python, buildPythonPackage, fetchFromGitHub }:
+
+buildPythonPackage rec {
+  pname = "simplefix";
+  version = "1.0.12";
+
+  src = fetchFromGitHub {
+    repo = "simplefix";
+    owner = "da4089";
+    rev = "v${version}";
+    sha256 = "0pnyqxpki1ija0kha7axi6irgiifcz4w77libagkv46b1z11cc4r";
+  };
+
+  checkPhase = ''
+    cd test
+    ${python.interpreter} -m unittest all
+  '';
+
+  meta = with lib; {
+    description = "Simple FIX Protocol implementation for Python";
+    homepage = https://github.com/da4089/simplefix;
+    license = licenses.mit;
+    maintainers = with maintainers; [ catern ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 1ceaa5b1c7a..43fb2661f5c 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -986,6 +986,8 @@ in {
     inherit (pkgs) cmake qt5 llvmPackages;
   });
 
+  simplefix = callPackage ../development/python-modules/simplefix { };
+
   pyside2-tools = toPythonModule (callPackage ../development/python-modules/pyside2-tools {
     inherit (pkgs) cmake qt5;
   });