diff --git a/bucket/dafny.json b/bucket/dafny.json
index 25ee43cdae..41cf19ff60 100644
--- a/bucket/dafny.json
+++ b/bucket/dafny.json
@@ -1,12 +1,12 @@
 {
-    "version": "4.9.1",
+    "version": "4.10.0",
     "description": "A programming language with a program verifier",
     "homepage": "https://dafny-lang.github.io/dafny/",
     "license": "MIT",
     "architecture": {
         "64bit": {
-            "url": "https://github.com/dafny-lang/dafny/releases/download/v4.9.1/dafny-4.9.1-x64-windows-2019.zip",
-            "hash": "42d2e013c18bb73c4dea3eab42dc91240991e70295d247e314021b4baddb43c8",
+            "url": "https://github.com/dafny-lang/dafny/releases/download/v4.10.0/dafny-4.10.0-x64-windows-2019.zip",
+            "hash": "e048a91fe84b8587f62334968e145d3e78312f6b2ab4465a24eaf7e94fca5028",
             "extract_dir": "dafny"
         }
     },