diff --git a/bucket/mercurial.json b/bucket/mercurial.json
index fdb79380cd..d34d7953b2 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": "5.3",
+    "version": "5.3.1",
     "license": "GPL-2.0-only",
     "architecture": {
         "64bit": {
-            "url": "https://www.mercurial-scm.org/release/windows/Mercurial-5.3-x64.exe",
-            "hash": "fec10fe020f23bf259d36340aef50997ad9d330cc361bf7414a66d6427b0745a"
+            "url": "https://www.mercurial-scm.org/release/windows/Mercurial-5.3.1-x64.exe",
+            "hash": "2efbd14fc84bb769a7f15044b977d206d2311856a5b8e864828a1cf94b1f1bc7"
         },
         "32bit": {
-            "url": "https://www.mercurial-scm.org/release/windows/Mercurial-5.3.exe",
-            "hash": "15ebd1c2302bd19a33368f6e900fbbafb5b1091765425a164581dc329509fc41"
+            "url": "https://www.mercurial-scm.org/release/windows/Mercurial-5.3.1.exe",
+            "hash": "b67ea46700475ed35b02cc1b56e1396fef9cc4d2756fb43f500d43e2de36b85c"
         }
     },
     "innosetup": true,