diff --git a/latex.json b/latex.json
index 5d944ac463..5a66038628 100644
--- a/latex.json
+++ b/latex.json
@@ -1,11 +1,15 @@
 {
     "homepage": "http://miktex.org",
-    "version": "2.9.5719",
+    "version": "2.9.5857",
     "license": "http://miktex.org/copying",
-    "url": "http://mirrors.ctan.org/systems/win32/miktex/setup/miktex-portable-2.9.5719.exe#/dl.7z",
-    "hash": "41bee67c430dc4a3f65416bdb6ddcaf18a45d6e825b71d6f227094e3f00c18e6",
+    "url": "http://mirrors.ctan.org/systems/win32/miktex/setup/miktex-portable-2.9.5857.exe#/dl.7z",
+    "hash": "463acece6b0109baf8a53a4039e09739fb779c541f45c3567b028c46944728e6",
     "bin": [
         "miktex\\bin\\latex.exe",
         "miktex\\bin\\pdflatex.exe"
-    ]
+    ],
+    "checkver": {
+        "url": "http://miktex.org/portable",
+        "re": "MiKTeX\\s+Portable\\s+(\\d+\\.\\d+\\.\\d+)"
+    }
 }