diff --git a/bucket/mosquitto.json b/bucket/mosquitto.json
index 788e80733a..33e5fd1652 100644
--- a/bucket/mosquitto.json
+++ b/bucket/mosquitto.json
@@ -1,16 +1,16 @@
 {
-    "version": "2.0.20",
+    "version": "2.0.21",
     "description": "An open-source message broker that implements the MQTT protocol.",
     "homepage": "https://mosquitto.org/",
     "license": "EPL-1.0",
     "architecture": {
         "64bit": {
-            "url": "https://mosquitto.org/files/binary/win64/mosquitto-2.0.20-install-windows-x64.exe#dl.7z",
-            "hash": "f540eb2df441e6087972c3e33dab480cf096e1c1f8b89072e3d8705ca980c360"
+            "url": "https://mosquitto.org/files/binary/win64/mosquitto-2.0.21-install-windows-x64.exe#dl.7z",
+            "hash": "a3d5b619223689709d7c00a73c080e3d95a393d39f61d11aa8845c559aa71dd2"
         },
         "32bit": {
-            "url": "https://mosquitto.org/files/binary/win32/mosquitto-2.0.20-install-windows-x86.exe#/dl.7z",
-            "hash": "08e6a37aa35131411ad998505e08207f2119f6198131c2bde83f74de16bd4107"
+            "url": "https://mosquitto.org/files/binary/win32/mosquitto-2.0.21-install-windows-x86.exe#/dl.7z",
+            "hash": "0c0ba965925ff254fc300337f78bc72c156c302f74fbc07d48b0a1547fe4aee0"
         }
     },
     "post_install": "Remove-Item \"$dir\\`$PLUGINSDIR\", \"$dir\\Uninst*\" -Recurse",