diff --git a/pkgs/applications/radio/freedv/default.nix b/pkgs/applications/radio/freedv/default.nix
index 1138cd8c1945..cecacc5d1c48 100644
--- a/pkgs/applications/radio/freedv/default.nix
+++ b/pkgs/applications/radio/freedv/default.nix
@@ -15,6 +15,7 @@
 , speexdsp
 , hamlib_4
 , wxGTK32
+, sioclient
 , pulseSupport ? config.pulseaudio or stdenv.isLinux
 , AppKit
 , AVFoundation
@@ -24,13 +25,13 @@
 
 stdenv.mkDerivation rec {
   pname = "freedv";
-  version = "1.8.9";
+  version = "1.8.10.1";
 
   src = fetchFromGitHub {
     owner = "drowe67";
     repo = "freedv-gui";
     rev = "v${version}";
-    hash = "sha256-HDHXVTkXC1fCqj4lnxURmXvQNtwDX4zA6/QFnYceUI4=";
+    hash = "sha256-m8Myo/5jt+rnV8cAR2p20aAHnbatTkIXGSVhLebAP9g=";
   };
 
   postPatch = lib.optionalString stdenv.isDarwin ''
@@ -55,6 +56,7 @@ stdenv.mkDerivation rec {
     speexdsp
     hamlib_4
     wxGTK32
+    sioclient
   ] ++ (if pulseSupport then [ libpulseaudio ] else [ portaudio ])
   ++ lib.optionals stdenv.isDarwin [
     AppKit
diff --git a/pkgs/development/libraries/sioclient/default.nix b/pkgs/development/libraries/sioclient/default.nix
new file mode 100644
index 000000000000..2a4cd3c8e91c
--- /dev/null
+++ b/pkgs/development/libraries/sioclient/default.nix
@@ -0,0 +1,38 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+, cmake
+, asio
+, rapidjson
+, websocketpp
+}:
+
+stdenv.mkDerivation {
+  pname = "sioclient";
+  version = "unstable-2023-02-13";
+
+  src = fetchFromGitHub {
+    owner = "socketio";
+    repo = "socket.io-client-cpp";
+    rev = "b10474e3eaa6b27e75dbc1382ac9af74fdf3fa85";
+    hash = "sha256-bkuFA6AvZvBpnO6Lixqx8Ux5Dy5NHWGB2y1VF7allC0=";
+  };
+
+  nativeBuildInputs = [
+    cmake
+  ];
+
+  buildInputs = [
+    asio
+    rapidjson
+    websocketpp
+  ];
+
+  meta = with lib; {
+    description = "C++11 implementation of Socket.IO client";
+    homepage = "https://github.com/socketio/socket.io-client-cpp";
+    license = licenses.mit;
+    maintainers = with maintainers; [ wegank ];
+    platforms = platforms.unix;
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 61b2cc4edbeb..f79c52f2ec74 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -24078,6 +24078,8 @@ with pkgs;
 
   simpleitk = callPackage ../development/libraries/simpleitk { lua = lua5_3; };
 
+  sioclient = callPackage ../development/libraries/sioclient { };
+
   sfml = callPackage ../development/libraries/sfml {
     inherit (darwin.apple_sdk.frameworks) IOKit Foundation AppKit OpenAL;
   };