diff --git a/bucket/unbound.json b/bucket/unbound.json
index 30b81e2c02..0404bab3da 100644
--- a/bucket/unbound.json
+++ b/bucket/unbound.json
@@ -1,5 +1,5 @@
 {
-    "version": "1.20.0",
+    "version": "1.21.0",
     "description": "A validating, recursive, caching DNS resolver",
     "homepage": "https://nlnetlabs.nl/projects/unbound/about/",
     "license": "BSD-3-Clause",
@@ -15,12 +15,12 @@
     },
     "architecture": {
         "64bit": {
-            "url": "https://nlnetlabs.nl/downloads/unbound/unbound_setup_1.20.0.exe#/dl.7z",
-            "hash": "5419cbcdfbfef1c469f02a918b457e5470fb5608912c82a048e6f07c143a43c4"
+            "url": "https://nlnetlabs.nl/downloads/unbound/unbound_setup_1.21.0.exe#/dl.7z",
+            "hash": "1d5e79a7904637de7184b51e420bb94e83c604309637e0b01ab4789ca5091692"
         },
         "32bit": {
-            "url": "https://nlnetlabs.nl/downloads/unbound/unbound_setup_1.20.0-w32.exe#/dl.7z",
-            "hash": "22bcf595d44e0cf4e9b975fb95f4b08aae7c92eaa6f198696417a77196df2b33"
+            "url": "https://nlnetlabs.nl/downloads/unbound/unbound_setup_1.21.0-w32.exe#/dl.7z",
+            "hash": "8bc5ca03670002de1c7ffb71238de8927c50cad89adddc0cb4caa97dd39c0663"
         }
     },
     "pre_install": [