diff --git a/pkgs/servers/mqtt/mosquitto/default.nix b/pkgs/servers/mqtt/mosquitto/default.nix
index c329cb1eac3d6..3cfe281e01b76 100644
--- a/pkgs/servers/mqtt/mosquitto/default.nix
+++ b/pkgs/servers/mqtt/mosquitto/default.nix
@@ -30,13 +30,13 @@ let
 in
 stdenv.mkDerivation rec {
   pname = "mosquitto";
-  version = "2.0.18";
+  version = "2.0.20";
 
   src = fetchFromGitHub {
     owner = "eclipse";
     repo = pname;
     rev = "v${version}";
-    hash = "sha256-Vs0blV2IhnlEAm0WtOartz+0vLesJfp78FNJCivRxHk=";
+    hash = "sha256-oZo6J6mxMC05jJ8RXIunOMB3kptA6FElchKlg4qmuQ8=";
   };
 
   patches = lib.optionals stdenv.hostPlatform.isDarwin [