diff --git a/bucket/mdbook.json b/bucket/mdbook.json
index d36cf9ada8..d497bf3694 100644
--- a/bucket/mdbook.json
+++ b/bucket/mdbook.json
@@ -1,12 +1,12 @@
 {
-    "version": "0.4.16",
+    "version": "0.4.17",
     "description": "Create a book from markdown files.",
     "homepage": "https://github.com/rust-lang/mdBook",
     "license": "MPL-2.0",
     "architecture": {
         "64bit": {
-            "url": "https://github.com/rust-lang/mdBook/releases/download/v0.4.16/mdbook-v0.4.16-x86_64-pc-windows-msvc.zip",
-            "hash": "698915db56c4620ae02241889ab96af30c8fd5e22574cd252e2fe504e67a81ce"
+            "url": "https://github.com/rust-lang/mdBook/releases/download/v0.4.17/mdbook-v0.4.17-x86_64-pc-windows-msvc.zip",
+            "hash": "380294a6d8c47fc3064e272dac0b995dfc0fec9daeb4f0ad738c3b20dc286879"
         }
     },
     "bin": "mdbook.exe",