diff --git a/bucket/etcd.json b/bucket/etcd.json
index ce85a2c389..eda7d362ba 100644
--- a/bucket/etcd.json
+++ b/bucket/etcd.json
@@ -1,13 +1,13 @@
 {
-    "version": "3.5.20",
+    "version": "3.5.21",
     "description": "A distributed, reliable key-value store for the most critical data of a distributed system",
     "homepage": "https://etcd.io/",
     "license": "Apache-2.0",
     "architecture": {
         "64bit": {
-            "url": "https://github.com/etcd-io/etcd/releases/download/v3.5.20/etcd-v3.5.20-windows-amd64.zip",
-            "hash": "8ccb5595d541f33491ce81eb36e3c5773ddb9ee5db4864eefc05651ed606b3d6",
-            "extract_dir": "etcd-v3.5.20-windows-amd64"
+            "url": "https://github.com/etcd-io/etcd/releases/download/v3.5.21/etcd-v3.5.21-windows-amd64.zip",
+            "hash": "36fbf1ba0bff59a06ea994cac266fa855b2d06bc07ff0a2daf9a4b112b0afa24",
+            "extract_dir": "etcd-v3.5.21-windows-amd64"
         }
     },
     "bin": [