diff --git a/bucket/mercurial.json b/bucket/mercurial.json
index e7ac1b20f5..df96bd7457 100644
--- a/bucket/mercurial.json
+++ b/bucket/mercurial.json
@@ -1,16 +1,16 @@
 {
     "homepage": "https://www.mercurial-scm.org/",
     "description": "Fast, lightweight, distributed source control management system designed for easy and efficient handling of very large distributed projects.",
-    "version": "5.1",
+    "version": "5.1.1",
     "license": "GPL-2.0-only",
     "architecture": {
         "64bit": {
-            "url": "https://www.mercurial-scm.org/release/windows/Mercurial-5.1-x64.exe",
-            "hash": "93c9151b956b0759fbf0a3b4fc3ca5fc3a17c3c89a2d9aa7ad5ffdce9763eb38"
+            "url": "https://www.mercurial-scm.org/release/windows/Mercurial-5.1.1-x64.exe",
+            "hash": "7892cf8ec21447d1d7d85ac89232b4bfde52a441014be6ca6c92446419d47db6"
         },
         "32bit": {
-            "url": "https://www.mercurial-scm.org/release/windows/Mercurial-5.1.exe",
-            "hash": "ac167791764c8ad6eb9b1ce07134582440286ff7960fd2f2eb3103cefb6e4b03"
+            "url": "https://www.mercurial-scm.org/release/windows/Mercurial-5.1.1.exe",
+            "hash": "e27ec889c8e10a638d4f343af4f52da98c699639c51b7ac428a1b37d47750f40"
         }
     },
     "innosetup": true,