diff --git a/pkgs/by-name/pa/paho-mqtt-cpp/package.nix b/pkgs/by-name/pa/paho-mqtt-cpp/package.nix
index 6373f3e54164..2d0981a47593 100644
--- a/pkgs/by-name/pa/paho-mqtt-cpp/package.nix
+++ b/pkgs/by-name/pa/paho-mqtt-cpp/package.nix
@@ -11,13 +11,13 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "paho.mqtt.cpp";
-  version = "1.5.2";
+  version = "1.5.3";
 
   src = fetchFromGitHub {
     owner = "eclipse";
     repo = "paho.mqtt.cpp";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-3fUqtYFerjEmwn68rNvDeqGU+gly6fkWOyBPikhoFNg=";
+    hash = "sha256-vwfWcJqAWY4Em4MxZVcvOi6pzXAYYlOrKh6peMtjcXo=";
   };
 
   nativeBuildInputs = [ cmake ];