diff --git a/mono.json b/mono.json
index bf78fb19c2..4d839a6788 100644
--- a/mono.json
+++ b/mono.json
@@ -1,9 +1,9 @@
 {
-    "version": "5.10.1.47",
+    "version": "5.12.0.223",
     "homepage": "http://www.mono-project.com/",
     "license": "MIT",
-    "url": "https://download.mono-project.com/archive/5.10.1/windows-installer/mono-5.10.1.47-gtksharp-2.12.45-win32-0.msi",
-    "hash": "5e97f7913bd96ee6b8a950ffc7238af2bbc1715e639a9a2114be13f69e36f71e",
+    "url": "https://download.mono-project.com/archive/5.12.0/windows-installer/mono-5.12.0.223-gtksharp-2.12.45-win32-0.msi",
+    "hash": "4607142048905d01d8ca87cd9eb00b8fb9b9ad5e7e5179ab6d50d39bb16b8a4b",
     "extract_dir": "Mono",
     "env_add_path": "bin",
     "checkver": {