diff --git a/bucket/mercurial.json b/bucket/mercurial.json
index e01f1ac9d0..db6ee03cae 100644
--- a/bucket/mercurial.json
+++ b/bucket/mercurial.json
@@ -1,16 +1,16 @@
 {
-    "version": "5.8",
+    "version": "5.8.1",
     "description": "Fast, lightweight, distributed source control management system designed for easy and efficient handling of very large distributed projects.",
     "homepage": "https://www.mercurial-scm.org/",
     "license": "GPL-2.0-only",
     "architecture": {
         "64bit": {
-            "url": "https://www.mercurial-scm.org/release/windows/Mercurial-5.8-x64.exe",
-            "hash": "d1d6c4a6db02a86bcc6934aed10a4edd1085480697cf6dc2f3322d047d21ca58"
+            "url": "https://www.mercurial-scm.org/release/windows/Mercurial-5.8.1-x64.exe",
+            "hash": "829ffddabf75fe04467e07badcafc6ad63899cffde30a4920efa0ab66f0ad73a"
         },
         "32bit": {
-            "url": "https://www.mercurial-scm.org/release/windows/Mercurial-5.8-x86.exe",
-            "hash": "808c2e61b075f65d9c473ce1c62e58f10713e3ba669435f975bedc28782e2cef"
+            "url": "https://www.mercurial-scm.org/release/windows/Mercurial-5.8.1-x86.exe",
+            "hash": "5daccd5cfaf66fb4639d3f9425e4aad0a331309add87c0a15f3b7c92e4f0964a"
         }
     },
     "innosetup": true,